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Verify QC USer Manual Version 1.11B - downloads

1. Additional Stations dialogue Added stations will be included in the Stations list for selection RTCM Input Name Veripos LBR1 Service RTCMa Station Data W Veripos Secondary via NTRIP Made User Contigurable Beam Ac _ Norwich 123 Aberdeen 777 Wick 701 _ Netherlands 702 __ Bodo 703 _ Kristiansund 704 Additional Stations Horwich 123 Additional Stations Rev No A3 Page 22 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 When adding new stations e Ensure the new station was indeed added to the selected beam e The demodulator configuration must be update separately to enable stations on its RTCM output port See the Veripos IMU manual 5 2 1 9 IO Device IO Device is configured automatically for installed RTCM Sources i e RTCMa MF and UHF Additional external RTCM inputs can be interfaced and configured via Serial Port Client Socket and Datagram serial Port Client Socket and Datagram connection details are detailed in the Appendix 5 2 1 10 Use of Non VERIPOS RTCM stations Verify QC is capable of using non VERIPOS corrections These corrections should comply with the RTCM SC104 V2 format Stations need to be coordinated in the ITRF reference frame to ensure compatibility with the VERIPOS reference station network Note VERIPOS cannot gua
2. een Logging Control Enter the logging file Max Size Default is 1400kB Files are logged for fault finding may be emailed and the recommended file size is 1400kB When logging data for review and archive purposes the recommended file size is 2000 5000kB The maximum allowable file size is 10 000kB Once a file reaches the set maximum file size Verify QC will open a new additional file automatically and assign a unique name using date and time of file creation Rev No A3 Page 45 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Within the Maximum Age field Verify QC offers options to clear old log files at intervals of e None continuous Default e Daily 24 hour e Weekly 7 day e Monthly 31 day N B a 31 day month will be used irrespective of the calendar to allow for overlap and data recovery 6 1 2 Start Click on the red record button in the tool bar to start logging Alternatively Logging ALF Start starts data logging and confirms the logging control settings Fie Config Logging Action View Tools Window Help De e GPS 08 GLO CRaQ Zug f Logging Start Button A name for the logging session and useful information can be added This will show when selecting a log for replay VERIPOS recommend adding information on the hardware and software configuration and operating
3. Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 5 4 1 3 Geoid Model Users can select the EGM96 EGMO8 Geoid Spheroid Separation Model or an externally derived separation value by selecting the User radio button By default the system uses EGM96 A User defined separation value should be maintained as the user moves around the area Note The User option should only be used when the exact Geoid ellipsoid separation from an alternative source or model is known 5 4 1 4 Elevation Mask The user elevation mask sets the minimum elevation at which a satellite will be used in the position calculations By default the elevation mask is set to 10 The VERIPOS reference stations are all configured to provide corrections above a 7 elevation mask Changing the elevation mask in Verify QC can affect which reference stations are used for corrections as the following logic is applied User elevation mask 2 102 correction elevation mask 10 User elevation mask lt 102 and 2 5 2 correction elevation mask user elevation mask User elevation mask lt bi correction elevation mask 5 A higher mask setting may be useful where satellites at slightly higher elevations are suffering poor signal to noise ratios or intermittent masking Note setting the elevation mask does not change the GNSS receiver configuration Verify QC manages the elevation mask setting of the GNSS receive
4. Organize Share with e Burn New folder Name K Favorites BR Desktop J Events p Downloads LD6 VOC Config alm Recent Places _ LD6 VOC Config aps MediaFire LD6 VOC Config t3m 2 LD6 VOC Config ver The above is the default directory if the VQC configuration files were backed up as described in the LD6 Operations Manual Rev No A3 Page 13 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Note Only Verify QC v1 12a configuration files should be loaded onto the LD6 These being copied from an LD6 or provided by a VERIPOS technician Once the config files have been stored in the correct folder structure insert the USB memory stick into the LD6 when in QC mode and from the File drop down menu select the correct QC config from the following option Open From F LD6ImportExport VQC Config Config Logging Action View Tools Window Help Open From Fi LO lmportExportiwwociConfig amp Test l LO6 Default Save Save s Dubo Zkart 1 best 1 12 2 Test This action will copy the config files onto the LD6 storage drive and open the config 5 CONFIGURATION This section contains information specific to the use of QC when loaded on an LD6 Integrated Mobile Unit IMU The QC version provides full functions for use with all Veripos services and algorithms to output high accuracy
5. 2 GNSS receiver is enabled for GPS and GLONASS has dual channels and is receiving both frequencies 3 The VERIPOS demodulator is enabled for the Ultra Service 4 The Ultra GPS station ID AND GLONASS station ID are enabled on the demodulator output port The Config Calculation Ultra option allows users to select the PPP Mode and up to 4 backup solutions for when the Ultra solution is not available The backup solutions can be selected from Apex or the user defined Standard Standard or Standard GLONASS calculations see New DGNSS Calc section in this manual The PPP Mode dictates which constellation is used in the Ultra calculation This will be GPS Only or GPS and Glonass The PPP Mode is available if Ultra and Glonass options are enabled on the dongle and Glonass is ticked in Advanced Options If Glonass is not enabled on the dongle or ticked in Advanced Options the Ultra calculation will be GPS Only Elevation Mask 7 Backup One S Backup Two vo Backup a Backup Three No Backup a Backup Four vo Backup id FFF Mode e GPS Only f GPS and GLONASS Ultra dialogue Rev No A3 win Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The logic of the backup process is as follows 1 An Ultra solution will be output if the calculation is in Ultra mode and has a minimum of 5 satellite
6. Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The availability table will for each 5 elevation bracket indicate what percentage of expected CA L1 and L2 observations were received in Verify QC Percentage values less than 100 may for example be caused by low elevation antenna masking or intermittent tracking due to interference Status Report GNSS Availabilty Eee WV JIU 16 00 20 00 04 00 08 00 GPS 14779 out of an expected 14779 100 00 GLONASS 14779 out of an expected 14779 00 00 Note which observation types are monitored depends on the GNSS receiver type The Septentrio AsteRx2 receiver for example does not output L1 observations and the column therefore will appear blank when using that GNSS receiver type Status Report View GNSS Availability The view options dialogue accessible via a right mouse click on the view allows GLONASS information to be hidden and the contents of the Status Report View to be changed to show GNSS Health History information or RTCM Availability information Display d vw GNSS Availabilty NSS Health History sass RTCM Availabilty Generate Status Report Copy Status Report View Options The GNSS Health History View shows the PRN or Slot Number of GPS and GLONASS satellites and the time period they were unhealthy against the present day s 24 hour time
7. Datum Not Known 3 Height height ranges from 999 9 to 9999 9 4 Height Ref Indicator this shows which vertical datum is being used to calculate height in the calculation S Spheroidal Height M Height above MSL i e Orthometric 5 Mode positioning mode used to derive height value H Height Aided 3 3D Solution Unknown 6 Error Ellipse shows 95 confidence level or 68 confidence level if the Output SD s at 1 sigma box is ticked of the semi major axis and semi minor axis 7 Direction orientation of the semi major axis from centre to largest error detection degrees from true North 8 95 68 SD shows 95 precision value or 68 precision value if the Output SD s at 1 sigma box is ticked of the latitude longitude and height coordinates 9 F Test a test applied to the Unit Variance A Fail may result from large outliers in the measurements 10 External Reliability the External Reliability is the maximum positional effect of an undetectable error in an observation This quantity is related to the Power of the test probability that the MDE would be detected and the Significance level used It is considered to be a more useful concept than internal reliability hence its recommended use by UKOOA as the most suitable measure of Reliability External reliability is measured in metres 11 LOP LOP Line of Position indicates the PRN of the last satellite in the list with the External Reliability value
8. Ei WE E 45 62 CHE 47 7 PIN ME 49 Se gl al E 49 Te se oa LD as eee eee ee ee eee ee eee ee ee eee 51 73 POPUP DOP WAR INIIN E 53 TA Gl FAV OU RN WEE 54 8 ENEE Eeer 55 8 1 L E 55 O2 EE 56 83 e au GE WR TEE 63 64a CALCULATION EE 69 0o e EE 82 GO COGN E ane an oe ee a EEN 94 9 tere KEEN 99 9 1 LOCK CONFIG EE 99 92 RUE AC IER Re CA HL CN 100 10 WINDOWS 2c ccc cccenceeceenceecescueeneseuseneseueeneeeueeneeeuseneeeuseueueuseueeeueeueseueeueseuseueseusenaseuseeuseueeeeseuseueeceeenessnens 101 Wee HEEP e E E 102 eL DONGLE EEN 102 TL2 REVISION AISTORY E 104 Rev No A3 Page 2 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Verify QC v1 12A on board LD6 User Manual AB V MA 00584 Vveripos Eo NEE E 104 UD Ee E WE 104 1 LDO RCE MANAGER E 105 12 1 VIEW AND TRANSFER OF QC CONFIGURATIONS sssssssssssesssssssesrnnnrnrrrrsrreresssssrrnnnrrrrrrrrrrreeene 106 122 LOGGED DATA ER 107 12 3 REMOVAL OF USB MEMORY GI 109 E ARCHIVE eege 110 TS INDEX OF APPENDICES cirea 111 A DEVICE TO DESCRIP HONS reisiin a aaa 113 AT SERALPORDS cspero eriin oraes a a ia E a OSa aS aA aE EAOa EEA a aE 113 A 2 CLIENT GOCRE TI eee eee eee eee eee esses eeaaaaaaaaeeeeeees 116 A 3 SERVER SOCKET ee 116 A 4 DAT TAGRAM eres 117 B OUALITY SEENEN 119 Bi JUKOOA STANDARD EE 119 B2 EE RRE RT RE 121 C VERIFY QC OUTPUTS sererai EEEE e EEE erent oe deen A E E E EREE 123 Ca IEN 124 D TIDES LOGGING FILE FORMAT KE 143
9. Latency of differential correction data Position comparisons derived from different reference stations Derived antenna height with respect to known height Monitor station information especially position error measured at the monitor Station All data should be time tagged e Maximum external reliability figure and observation carrying it The UKOOA guidelines present a set of test statistics and quality measures recommended for use with DGPS In its final recommendations see 1 it states A3 Page 119 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 It is essential to assess the precision and reliability of each position in order to ensure the quality of the DGPS measurements Thus is recommends that the following processing steps be implemented e w test for outliers carried out for each position fix e F test for unit variance carried out for each position fix e When no more outliers are identified in any fix precision and reliability measures will be calculated o Precision a posteriori error ellipse o Reliability external reliability positional MDE using a power of test of 80 Where accuracy and precision statistical parameters are generated these all represent a 95 20 confidence region Appendix A of the UKOOA guidelines emphasises this by listing Suggested parameters to be specified by a system user fo
10. Monthly Tidelnfo_YYMM txt Note Sprint txt and Doodson txt file naming conventions will follow the same pattern as above For weekly files Sunday is defined as the first day of the week This can be copied to a USB drive using the LD6 File Manager application see Section 11 Rev No A3 Page 52 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 7 3 POP UP DOP WARNINGS DOP Warnings inform the users about future periods of bad geometry or low satellite count They appear at the centre screen with an audible alarm Advance DOP warnings alert the user about the weakness of the available GNSS constellation in the work area More detailed information is available from the DOP View when the icon button Is selected The DOP Warnings appear if the number of SV s is lt 6 and if PDOP is gt 10 during the next 12 hours The DOP view shows the elevation mask setting lt may be possible to increase the number of satellites and improve the DOP by reducing this elevation mask under Config Calculation Settings This dialogue permits DOP warnings to be disabled Restore DOP warnings in Action DOP Warnings Display Current DOP Warnings Hew 18 05 19 50 Low SV 18 05 19 40 Poor POOP 20 00 73 40 Poor POOP A F en P Sen Si LS Click Button to b Display DOP View Example DOP Warning Pop up The above e
11. Page 10 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 3 3 USER SELECTABLE FUNCTIONS You can customise the appearance of Verify QC A number of advanced software options can be disabled to simplify the appearance of the software The dialogue to do this is accessed via Tools Advanced Options Advanced Options tions w GLONASS 7 w PPP Ref Calculation w Tides w RINEX Logging w CSL Output vw Always show on start up Advanced Options dialogue The Advanced Options dialogue also appears on initial start up of the software Enabling disabling options will affect which configuration dialogues and associated views are accessible through the Verify QC menu structure By default all options enabled on the Verify QC dongle will appear enabled in a new configuration Options will be presented depending on the features available from the selected GNSS card Options selected or deselected are stored when you save the configuration file and will be in place when you reopen the configuration file This manual covers all Verify QC functions and views If any are absent please first check the dongle enable status under Help Dongle View and your selections under Tools Advanced Options Rev No A3 Page 11 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 Us
12. Rev No Date A3 09 09 2015 Page 3 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 1 INTRODUCTION This manual covers e configuration e Views e operational procedures VERIPOS Verify QC software on board the VERIPOS LD6 IMU The Verify QC suite of processing software provides real time position with quality control information for the professional positioning user It contains full calculation configuration flexibility with performance monitoring The Verify QC functionality is scalable in concept It is expandable with many specific features enabled through a USB software key dongle providing user flexibility and simplicity of operation The software provides a window into the complete position derivation process by capturing both GNSS observation and received augmentation data Multiple calculation permutations can be configured providing complete visibility of all parameters with associated quality control File Config Logging Action View Tools Window Help OWlelolersMico Te ee sit Calculation Status 0X GPS Source GNSS Rx 1 April 2015 09 00 48 UTC SNR Plot Name PDOP Mode __ 2 z GNSS Rx As Received No Test Ultra Ultra GPS Passed 1 026 0 03 1 of 1 12 1 395 z o Apex Apex GPS Passed 0 227 0 04 1 of 1 12 aes 3 3 STD L1 Diff GPS Passed 1 190 0 50 6 of 6 11 1 568 3 3 STD2 L1 Diff GPS GLO Passed 1 261 0 55 G
13. a ee ee Se ten 5 1 CONFIGURE GNSS RECEIVER When using the GNSS Receiver check the following points e the antennas is installed with the best possible view of the open sky avoiding any masking or possibility of interference e cable runs must be short to avoid any effect on the L2 signal to Noise Ratio values or degradation of VERIPOS correction services performance Note Offsets are not required during setup of the GNSS receiver as the positions generated by Verify QC are referenced to the phase centre of the GNSS antenna 5 1 1 Configuring the GNSS Receiver The LD6 with QC is pre configured to work with a Septentrio GNSS receiver Select Config GNSS Rx and enter the information described in the following sections CASS Rx Name Type Veripos LDG Client Socket een GNSS Receiver Rev No A3 Page 15 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 1 1 1 GNSS Name When no entry is made against Name for a GNSS receiver the default name of GNSS Rx is inserted automatically Where more than one Verify QC system is installed on a vessel it is good working practice to give the receivers unique and more descriptive names such as Port Fwd Starboard Aft or Primary and Secondary This makes it easier to distinguish between the systems and aids troublesho
14. panel MMI 2 Configure the IO Device in Verify QC to the designated Serial Port Com 9 to14 Output lO Device LD Port r LD6 P10 LD6 F11 LD6 P12 Serial Port Options Rev No A3 Page 113 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 LD6 configuration When the LD6 is running in Verify QC Mode Com Ports 9 to 14 are assigned to be used for Verify QC The user must set the desired Baud Rate Data Bits Parity Stop Bits and Protocol prior to configuring the input or output IO Device in Verify QC To do this press the Settings then O button on the LD6 front panel and scroll to desired com port in the list Com 9 to 14 0 10 1 Select COM Port Port COM14 source Verify QC Line RS232 Rate 9600 8 n 1 LD6 Serial Ports Reserved for VQC use Click Next to display the Select Device page This should be set to Verify QC and should not be changed by the user 0 10 2 Select Device and Port Device O Verniy QC N A Cancel LD6 Serial Ports Reserved for VQC use Rev No A3 Page 114 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Click Next then select the Protocol from RS232 or RS422 0 10 3 Select Line Standard TRISTATE R5232 R5422 LD6 COM Port Setti
15. 00 100e 6 RTCM NovAtel If the RTCM decoding of non VERIPOS stations is to be automatic then the option Use Closest 3 should be selected The manual station configuration area is then made unavailable in the dialogue Verify QC will then automatically select the closest 3 stations based on their coordinates in the RTCM Type 3 messages and label them with identifiers N1 N2 and N3 These stations will appear in the Config Calculation New GNSS Calc dialogues with name N1 RTCM Input Name ID etc as for example in the dialogue below Mame Mode Veripos Standard ad selection a Selected Below a stations c9 Hammerfest CID Vardo INI MF 4 INZ MF 4 INS MF 4 Height Ad cancel Closest Non VERIPOS Station Names Note stations that do not broadcast RTCM Type 3 message will not be detected by the automatic Use Closest 3 process and therefore cannot be used in Verify QC position calculations Page 25 Rev No A3 Verify QC v1 12A on board LD6 User Manual Date 09 09 2015 veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 1 11 lO Device The O Device section supports RTCM inputs via Serial Port Client Socket and Datagram Serial Port Client Socket and Datagram connection details are detailed in the Appendix Guideline settings for RTCM data e Baud Rate 9600 e Data Bits 8 e Parity None e Stop Bits 1 Users
16. 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 NMEA ZDA Sentence The NMEA ZDA sentence provides time and time zone information Structure and Example GPZDA hhmmss ss dd mm yyyy xx yy hh lt CR gt lt LF gt GPZDA 201530 00 04 07 2002 00 00 6E ZDA sentence defined ZDA Time amp Date hhmmss ss UTC time in hours minutes seconds of the GPS position dd mm yyyy Day Month Year UTC XX local zone hours 00 to 13 hrs yy local zone minutes 00 to 59 hh lt CR gt lt LF gt checksum carriage return and line feed NMEA GNS Sentence The NMEA GNS sentence contains time and position fix related data for a single or combined satellite navigation system Separate GPGNS and GLGNS sentences are used to report data calculated from individual systems if a combined GPS GLONASS position is output A single string will be output if no GLONASS data is in use Structure and Example GPGNS hhmmss ss ddmm mmmmmmm a dddmm mmmmmmm b Q ss p p h h g g annn cc lt CR gt lt LF gt GNGNS 104601 00 5707 7332018 N 00204 7778500 W DD 12 0 71 24 743 50 284 45 GPGNS 104601 00 09 3 0 0001 44 GLGNS 104601 00 03 3 4 0001 56 GNS sentence defined GNS GNSS Fix Data hhmmss ss UTC of position ddmm mmmmmmm latitude of position a N or S latitude hemisphere dddmm mmmmmmm longitude of position b E or W longitude hemisphere Q Mode Indi
17. 266 1080199981 050 D 1496 6056 DD KOO 20555511 304 64171439 378 D 1166 166 42 500 24184605 56 127091121 321 D 4629 264 47 250 24164607 161 99051961 973 0 abo 214 31 000 22016996 754 119904131 293 0 a002 7a 49 500 22016995 761 93431510 0568 D 2339 791 41 750 24525198 918 126660775 240 D 4562 166 43 000 24525201 333 100426576 123 0 3670 531 26 750 21921039 46 115195920 467 D 4639 656 d 000 21921041 343 69763102 311 O 3615 322 34 750 22420164 963 117060906 433 0O 14 395 DD En 22420162 058 91839736 D40 O 11 215 35 250 25503115 73 134019714 268 D 1602 116 40 000 25503123 339 104430936 377 D 1246 399 21 5600 S9RnR1aa Di 19023030R A 160 A 2206 Dog aq DD OOEDEIDD FAR RINEX View Measurements Rev No A3 Page 97 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Gei RINEX Mixed Observation Data Header Measurements 2 10 OBSERVATION DATA M MIAED RINE VERSION TYPE Verify 1 12 Apr 15 14 24 PoM RUN BY DATE MARKER NAME MARKER NUMBER OBSERVER AGENCY REC ii Pee WERS D REW CLOCK OFFS APPL ANT TYPE 0 GOOG 0 GOOG 0 000E ANTENNA DELTA H EIN 3460662 1557 13247 6 8087 5336134 0192 APPROX POSITION YZ 1 1 DH WAVELENGTH FACT Life D C L1 D1 Sg P2 L2 D2 22 TYPES OF OBSERV 1 000 INTERVAL 2015 d 1 13 24 57 DOUD GFS TIME OF FIRST OBS 2015 d 1 E 25 24 0000000 GP
18. DGLONASS quality information The most well known and frequently referred to standards are 1 UKOOA 2 NMEA 0183 Each standard is explained in more detail in the following sections NMEA have recently introduced the NMEA 2000 interface standard This standard falls outside the scope of this document See www nmea org for further information References 1 Guidelines for the use of Differential GPS in offshore surveying UKOOA 1994 2 NMEA 0183 Standard for interfacing marine electronic devices version 3 01 January 1 2002 UKOOA STANDARD The UK Offshore Operator Association UKOOA issued Guidelines for the use of Differential GPS in offshore surveying in 1994 These guidelines set out what is generally regarded as good practise in the offshore industry They are not mandatory and operators are free to adopt different guidelines or standards These guidelines are now dated in certain areas due to advancements in positioning technology and algorithms However they contain useful suggestions for quality monitoring as indicated below see 1 To assist DGPS operators and client representatives to monitor the quality of the DGPS system in real time the following information should be continuously available e Pseudo range residuals of all SV s and observation weight values used Unit variance Number of satellites in view and number used in solution Redundancy of least squares solution DOP values HDOP PDOP and VDOP
19. Ee Urteel leg Sele lene ape Se pe Halle tre lee ls ell elle d DH ll ell elle l le hl el ls ll e A0 Sol Se El HEN lg ee D El d De lb EE zl Sechs ell ell septentria Extra Measurement Data 4000 S05 pe Yo gt lt 219 gt lt 1 bes fA lt 0 gt lt os0 lt 194e lt 17 gt lt lt 1 gt lt 0 gt lt 2e gt lt 199 gt gt lt 217 gt gJA lt 192 gt lt 142 gt lt 209 gt lt 198 gt lt 259 gt lt 0 gt lt 19592V lt 19 gt lt 20b gt lt 16 gt TASe08 E EES ENEE OEAE EEN DHA lt 0 gt C lt lt 249 gt lt 0 gt lt 49 gt lt 208 gt cJ lt 181 gt lt 170 gt lt 157 ek 12 gt 782161 gt lt 191 gt lt 0 gt lt 02 lt 19 Ge Pete dain Ee e Ll e HEH El Septentrio Cartesian Position 4006 50 IO View Right clicking in the IO view allows the user to change the data source All defined inputs to or outputs from Verify QC can be monitored Rev No A3 Page 55 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No veripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 opie a GPS RY View IO Options Pause and Fixed Font options are available to aid data interpretation 8 2 GNSS The GNSS menu section contains views relating to the GNSS receiver and satellites 8 2 1 SNR Fie Config Logging Action DHe o Ps Tools Window Help 10 Lee eo Fle SMR Differential k DOP Calculation SY Health OC d Missing GN Const
20. L1 and L2 are used to select the GNSS observation types to be recorded in RINEX files Note which observation types are available is GNSS receiver dependant Observations not available from the receiver will be greyed out lf the receiver only outputs C A measurements L1 and L2 dialogue boxes will be greyed out Similarly if receiver outputs C A and L2 measurements but not L1 the L1 dialogue box will be greyed out The Marker Antenna Observer and Comments inputs allow configuration of the header within the RINEX file It is recommended these are as complete as possible to aid post processing and identification Click Confirm to complete the RINEX logging configuration Following this the Record Play and Pause control buttons are visible in Tool Bar Note users are required to manually start RINEX logging after setting the following parameters for measurement control Manually start RINEX logging by selecting the Start RINEX Logging control button on the toolbar or Logging RINEX Start Rev No A3 Page 48 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 7 ACTION The Action drop down menu allows for commands to be sent to the processes as shown in the screen below File Config Logging View Tools Window Help D Dee Rece Details gt M55 Tides Initialise DO
21. Old Correction Typel IODE Mismatch Using Old Correction C3 Tananger rejected PRN 22 below mask 10 C4 Netherlands rejected PRN 22 below mask 10 C5 Falmouth rejected PRN 22 below mask 10 13 11 00 13 12 00 13 13 00 13 14 00 13 15 00 Calculation History View The time period can be changed by using the mouse to right click in the screen Time period options are 1 6 12 and 24 hours The user can select also the calculation for the calculation history to be displayed Calculation 2 Ultra Copy Apex PPP Ref Calculation Size to Content STO STD2 PPP REF Calculation History View Options 8 5 5 Status Report The Status Report view provides 3 views to monitor the availability of GNSS measurements and correction data The primary view is the GNSS Availability View The view is split into an availability bar indicating the availability of GPS and GLONASS measurement sets against the present day s 24 hour time scale and an availability table indicating the availability of GPS and GLONASS measurements against 5 elevation brackets The availability bar appears continuous with a green colour for all measurement sets A missing measurement set will appear as a black vertical line to indicate a break in the GPS and or GLONASS data input A missing measurement set may be caused by a break in the data connection to the receiver corruption of the data stream or total loss of data due to interference Rev No A3 Page 91
22. Reference Position ki Hide Tracks Hide Table Position Mode Lkm Re Centre 100m Copy LUm w om Size bo Content beggen lm Error Ellipses View Scale Scale can be changed and the plot Re Centred to the current position The Track Plot can be copied to the PC s clipboard as a bitmap image for pasting into applications 8 5 2 Time Series The time series plot is used to monitor the performance of positions calculated over a known period of time Users can select one of five predefined views from the tabs at the top of the display Position Difference UKOOA Statistics Scatter 8 5 2 1 Position The default Position view shows Delta East Delta North amp Delta Height of the calculated positions relative to the reference position selected by the user Right mouse click on the view to select the reference position Time Scale b Ta en A Trial Point Show Controls GNSS Rx Copy Ultra Apex Size to Content STD TD PPP REF Time Series View Reference Position A3 Page 84 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 r Time Series Apex Difference UKOOA Statistics Scatter Delta East GNSS Rx Ultra Apex STD STD2 Network of 5 Delta North Stand Alone PPP REF Trial Point Time Scale 20 Minutes Plot Delta East X Delta North Delta
23. Rev No A3 Page 68 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 4 CALCULATION The Calculation menu contains all the views relating to the calculations File Config Logging Action Tools Window Help kl o CPST o RAZ GN Differential Status Position Tides Calculation LC Logging T F L F F FFF Ref View Differential Menu Structure 8 4 1 Calculation Status The Calculation Status view displays the current status of the configured calculations to give an indication of the quality of these calculations All calculations setup in the Configure Calculations page are listed Ultra and Apex calculations will only be shown if the dongle has been enabled for these services Calculation Status 1 April 2015 124 31 30UTE As Receved Ultra GPS Apex GPS O Ohi EEs L1 Dt GHG SG Network of GT Dr GPS Stand Alone Uncorrected Calculation Status View The top of the table shows the current date and time in UTC Note Clicking the left mouse button on a calculation name will open up a Position view containing more detailed calculation status information with toggle between advanced and simple views Rev No A3 Page 69 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Calculat
24. SV PRN 01 99 HT if Altitude 00 OK 12 w test Rejected LOP w test Rejected LOP gives the PRN of the last satellite in the list that fails the W Test SV PRN 01 99 HT if Altitude 00 OK 13 Reference Station ID this lists the station ID s of stations being used in the calculation If a multi ref is being calculated this field can be padded with zeros to a fixed length if required by checking the box in the UKOOA 2 output setup window Rev No A3 Page 139 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 GPLCT Sentence The GPLCT Sentence is particularly intended for use with the Ultra and Apex services as it includes a Float RTK GPS Quality Indicator GPLCT General Description This string is comma delimited but with fixed length fields A checksum is included for extra robustness The string is 87 characters including the character and the checksum GPLCT 2006365 170002 00 2859 836227 N 09304 171413 W 5 025 13 090 00 05 55 02 01 64 Identifier GPLCT fixed string that identifies the string yyyyjjj Identifies year and Julian day n Latitude ddmm mmmmmm Degrees and decimal minutes 6 digits on the decimal minutes Latitude Nors Hemisphere Ol Longitude E or W Hemisphere 0 GPS Quality fix not valid indicator 1 Uncorrected GPS fix
25. V MA 00584 Send Command to Receiver VERIEF v OC FROM OPERATING CORRECTLY A SENDING COMMANDS WAY STOP Command Send Send Message Note take care when sending additional commands to the receiver These may interfere with normal operation of Verify QC 7 2 MSS TIDES Note the Tides function is a dongle control advanced functionality in the Verify QC software lt can be used with VERIPOS Apex and Ultra services The Tides function allows a vessel to determine local tidal height 7 2 1 Reset It is possible to reset the Tide calculation process manually when the work area changes or essential input information is Known to have changed such as the antenna height above the waterline Previously logged data is deleted and the Tides logging process starts afresh The Geoid Tide calculation gives an instantaneous tides estimate whereas the Ultra Tide calculation requires an initialisation period of 39 hours When the process is reset Ultra Tide estimates are not available for the first 39 hours after reset Tide Logging vd A Do you want to archive existing tidal data before the reset Check the gl ol archive box and set the directory for the archive VWMARNING if the archive box is checked the archive action will still take place even if the reset if cancelled ees Tides Dialogue Box An option to archive logged Tide information is presented before resetting Select an archive location where the two log fi
26. Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 APPENDICES Rev No A3 Page 112 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 A DEVICE IO DESCRIPTIONS This appendix outlines the steps required to configure the interfacing within Verify QC and the LD6 MMI when Verify QC is running on an LD6 unit The Verify QC software supports a number of communication types for data input and output as described below None Y serial Port Chent Socket Server Socket Datazram IO Device Communication Types All communication types available within the software are displayed in the drop down IO Device menu The list has been customised such that only input communication types are available in input dialogues and vice versa Each communication method is described in the following sections A 1 SERIAL PORTS Serial ports are the physical connections to the hardware The settings depend on the device being used or the data being output To access the serial port configurations options select Serial Port connection type from the IO Device menu When running Verify QC on board the LD6 the serial port configuration is completed in 2 steps 1 Configure the Baud Rate Data Bits Parity Stop Bits and Protocol on the LD6 front
27. Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 2 STARTING VERIFY QC When using Verify QC on an LD6 the software is pre installed as part of the LD6 software package 2 1 DONGLE DRIVER Verify QC when run on the LD6 has a driver pre installed The LD6 requires a dongle with permissions supplied by VERIPOS VERIPOS recommend one of the rear USB ports is used 2 2 RUN VERIFY QC ON THE LD6 When using Verify QC on an LD6 the software is pre installed Ensure you have an activated USB dongle attached to the LD6 before starting Verify QC The following section provides details on how to start to use Verify QC on the LD6 IMPORTANT Before turning on the LD6 e Attach a VGA monitor USB keyboard amp mouse and a valid Verify QC Dongle to the LD6 Equipment used when using Verpos LD6 running Verify QC LD6 Front panel USB Mouse USB Keyboard e Ensure all antenna connections etc are correctly attached to the LD6 If you need help refer to the LD6 Operations Manual and LD6 Quick Guide available from VOSS at http help veripos com Power up the LD6 and allow the unit time to acquire signals etc Rev No A3 Page 7 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 If necessary enable the LD6 for the Veripos service s you require to use in conjunction with Verify Q
28. X gp ID numbers of GPS satellites used in solution No of Glonass ie Number of GLONASS satellites in use Svs 26 Glonass IDs Xx x gl ID numbers of GLONASS satellites used in solution Rev No A3 Page 142 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 D TIDES LOGGING FILE FORMATS The Tides functionality will create three files in ASCII format e Tideinfo txt e Doodson txt e SPRINT Tides txt The structure of each of these files is outlined in the tables below Tideinfo txt General Description The Tidelnfo txt file contains current system height and tide information at the Averaging Period as configured by the Verify QC user This file contains comma delimited strings with variable length fields Null fields indicate that no information is currently available they should not be interpreted as zero A checksum is included for extra robustness Negative tide is low tide and positive tide is high tide respectively UltraTide 20070228 21 40 00 28 600 600 5236 2830 N 00143 5184 E 5 74 0 08 0 07 5 66 5 82 5 45 0 29 0 02 5 72 44 84 0 00 0 27 EGM96 2B Field Field Name Format or Units Description amp Comments Number TalkerID Standard UltraTide or ApexTide position used dependant or VQC VQCnnnTide with nnn being the version of Verify QC used Date yyyymmdd Identifies year month and day f
29. by inserting a clean virus scanned memory stick in to a free USB port and selecting Run File Manager E Drive Detected Archive Log Files Import file s Run File Manager Export Config Files USB Splash Screen Alternatively to launch file manager From the LD6 home page go to Actions Apps and select File Manager 0 17 Select action below Launch LD6 File Vo Mode Manager Launch Page A Config window will be presented on Screen 2 ile Edit View Bo Name Size Type SC LD YOC Config LDE VGC Config File Folder OB Archive 4 Se Removable Disk E File Manager Rev No A3 Page 105 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 In File Manager use the Keyboard and mouse for e Viewing and Transfer of Verify QC configurations e Logged ALF data retrieval e Logged Tides data retrieval 12 1 VIEW AND TRANSFER OF QC CONFIGURATIONS Navigate to the QC configuration folders copy and paste to desired location on the memory stick Ea LDG YOC Config File Edit View Name Type Data File Folder O Events File Folder H re Removable Disk E E History File Ealder C Reports File Folder O Tides File Folder Ej LOG vU Config APS File LOE YOC Contig alm ALM File LOG VOC Contig csl CSL File LOG VOC Config tm TSM File LO6 WOC Contig ver VER File lt is recommended to use the defaul
30. logging of GPS data in the Receiver Independent Exchange format RINEX Verify QC will create also event logs and a record of all configuration changes 8 6 1 Event Log View Logging Event Log will display the Verify QC event for the last 4 hours The event information is split over four columns with the heading Time Mode Event and Source respectively Event Log Live Time UTC amp 0104 15 0104 15 0104 15 0104 15 0104 15 0104 15 0104 15 01 04 15 01 04 15 0104 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 01 04 15 0104 15 01 04 15 NINAS Rev No A3 Date 09 09 2015 13 20 02 Error 13 18 57 Error 13 18 34 Error SRS RETo 13 16 22 Error 13 13 33 Error 13 13 06 Error 13 12 29 Error 13 11 04 Error 13 09 39 Error 13 09 39 Error 13 09 17 Error 13 08 42 Error 13 07 43 Error 13 06 44 Error 13 06 39 Error 13 04 31 Error 13 03 38 Error 13 02 29 Error 13 02 26 Error 13 01 30 Error 13 01 03 Error 13 00 35 Error 13 00 35 Error 12 56 46 Error 12 56 46 Error 12 56 46 Error 12 57 48 Error 12 57 23 Error 12 57 18 Error 12 56 25 Error 12 55 52 Error 12 54 52 Error 12 54 52 Error 13421 Error Mode RTCM Type Outlier 2 69 detected on PRN 30 RTCM Type31 Outlier 2 17 detected on Slot 5 RTCM Type31 Outlier 2 47 detected on Slot 17 RTCM Ty
31. map will zoom in to the user location and the stations for which corrections have been received The map can be changed to show the VERIPOS coverage displaying all stations in the global VERIPOS network It can also be adjusted to show the 5 15 and 30 elevations of all satellite delivery links 150 W 120 W Tananger 705 511km Netherlands 702 713km Falmouth 706 797km Kristiansund 704 864km Bodo 703 1412km Bologna 708 1687km Marbela 710 2302km Cyprus 709 3627km Station Map View Global Coverage Use the mouse to draw a box on the map and zoom to that area Use zoom out zoom in icon to move back to the previous map 8 3 4 Type 16 Messages View Ditferential Tyoe 16 Messages opens a view showing details for received Type 16 messages Reference stations may issue additional station information or status updates by sending a Type 16 message containing ASCII information up to 90 characters long The Type 16 messages view lists for one or more stations the time of the last received message the number of times the same message has been received the station name and the message OWS 16 Messages 10 56 43 2423 Padova PADO 10 56 46 1232 Milano Courtesy of Savio Landonio Codevintec and Institute of Agricultural Engineering Milano 10 56 49 2461 Torino Stazione GPS Politecnico dn Torino Type 16 Messages View A3 Page 67 09 09 2015 Verify QC v1 12A on board LD6 User Manual V
32. messages are contained in Appendices A3 09 09 2015 Page 43 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 5 1 4 lO Device The O Device section supports position output via Serial Port Server Socket and Datagram Serial Ports are restricted to Com 9 to 14 Server Sockets and Datagrams are restricted to ports 19201 to 19206 If using Serial Ports the following options must be configured on the LD6 IMU front panel e Baud Rate e Data Bits e Parity e Stop Bits e Protocol RS232 or RS422 See Appendix for details 5 6 CSL OUTPUT Note this menu option is available only with a CSL Output enabled dongle The CSL Raw Output option allows users to output a series of records to the Concept Systems Limited CSL ViGPS process built into CSL navigation products This process can accept satellite data over an Ethernet or serial connection and convert it to CSL format For further information contact CSL www csl co uk CSL are a subsidiary of ION CSL Raw Output Name CSL Raw Output Fix il 4 Output IO DEVICE carver Socket Port TEE CSL Raw Output Allocate a name to the output If no name is entered it will default to CSL Raw Output The Ax ID output must be enabled for it to become active It is in the range of 0 99 and is used by the receiving application to identify the source
33. of Ref Stations r PRN s of Sats Used Ref Station Idents End Character CRLF A3 09 09 2015 Format Unit Comments a6 In swapos o gt I H 8torthisverson S pt Seecommentt S A _ Name version of DGPS system See moment Ca ae H RH GPS Week no since August 21 1999 F10 2 s Seconds into GPS week GPS Time s om See comment 3 dd mm mmmmmN space between D and M dd mm mmmmmE space between D and M am Ce uf Ce p a a a 1 In Lossen 1 Ju ss SSS 1 In ss OS No otsaees used iorns 1 No of ref statons used for x See Comment 10 en f Ret statons used for this fix Separated by commas mo a Cosesting SCC Page 133 Verify QC v1 12A on board LD6 User Manual Document title Document No Rev No Date Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 Comments 1 10 A3 09 09 2015 The Nav point no is a unique integer identifying the position It should be manually input to the software according to requests from Positioning Engineers Alternatively this should start from 1 and be incremented if several positions are output from the same system The system name should identify the system or contractor and software version e g SEADIFF 2 1 or MFIX 1 2 3 The Age of fix is the time of the first character of the data string being output to WesternGeco s Positioning system minus the time of position WGS84 ellipsoid and da
34. of the CSL Raw messages The O Device section supports CSL Raw output via Server Socket and Datagram See the Appendix for details Rev No A3 Page 44 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 6 LOGGING Verify QC can log all raw GNSS data and raw RTCM data to files in the proprietary Verify QC logging format Verify QC can also log the GPS data in RINEX Receiver INdependent EXchange format Note When Verify QC is running on an LD6 the logging paths are all pre set to the Config folder As a result there is no need to browse for a file location To remove data from an LD6 unit use the File Manager application preinstalled on the LD6 See section 11 File Config Action View Tools Window Help DH Mec CR Zlg RINE Start Logging menu structure 6 1 ALF Verify QC can be configured to log all GNSS data and RTCM data to files in the proprietary Verify QC logging format The data can be archived and replayed at a later time to provide the same information as seen real time enabling additional offline analysis to be undertaken 6 1 1 Edit Logging ALF Edit allows the user to set the desired file size prior to starting the logging process ALF file location is preconfigured to the Config Config Name Data folder Logging Control Max Size 4400 Maximum ABE Kone continuous
35. on the colour constellation plot Colour provides additional information on the missing observation type as indicated by the on screen legend Possible causes of missing satellites are masking intermittent tracking due to external interference intermittent tracking due to low signal levels unhealthy satellites Observations for unhealthy satellites will be missing continuously These create a yellow arc on the plot When unhealthy satellites are not reported as being unhealthy by the receiver they will appear as a red arc on the plot Rev No A3 Page 61 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 el Missing SV Constellation Plot GLONASS L1 Missing L2 Missing Both Missing Unhealthy O x i O x L1 Missing L1 Missing L2 Missing L2 Missing Both Missing Both Missing Unhealthy Unhealthy Missing SV Plot Poor Tracking Corrected for Heading View options are selected by right clicking on the view GLONASS can be hidden Hide GLONASS Correct for Heading Clear Butter Copy Size to Content Missing SV Constellation Plot View Options By default the missing satellites are plotted with azimuths relative to the True North direction These can be corrected for heading such that the constellation plot becomes fixed to the vessel and relative to t
36. positioning information The LD6 requires that a valid Verify QC Dongle is installed on a USB port before launching in to QC mode on the DG DO NOT remove the dongle during QC mode operation File Ke pii Logging Action View k GNSS Receiver SLO RTM Input b Demodulator Input Calculation b Position Output L CSL Output Config Menu Structure The Config configuration menu is used to set up all parameters within Verify QC Time and care must be taken to ensure all parameters are entered or selected correctly during the configuration process Failure to do so may affect the performance of Verify QC operation The configuration menu is structured such that the software is configured in a logical order Rev No A3 Page 14 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The primary steps with QC on the LD6 are Automatic configuration of the GNSS receiver input Configure RTCM inputs for Beams stations and external RTCM inputs to be applied Automatic configuration of the Demodulator Input Set check elevation mask and Geoid Model Configure DGNSS calculations Select backups to Apex Apex and or Ultra Ultra calculations Configure advanced calculations for example Tides and PPP Ref Configure Position Outputs server socket datagram amp serial port Configure other outputs as for example CSL Output
37. should consult the manual for the demodulator used to provide the RTCM input to Verify QC to confirm the settings 5 2 2 Editing Existing RTCM Inputs The Config RTCM menu lists all configured RTCM inputs Input can be selected separately for editing deletion or change of order as required 5 3 DEMODULATOR INPUT The demodulator input is the Demodulator Status message from the L Band Demodulators in VERIPOS LD6 This option is preconfigured when running Verify QC on board the LD6 Demodulator Input Name verpos LBRA Service Status Type LDE Client Socket ees Demodulator Status Rev No A3 Page 26 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 CALCULATION There are no software limitations to the amount of calculations that can be configured in Verify QC Limits are defined by the user hardware particularly the availability of processor and memory resources 5 4 1 Settings Click Config Calculation Calc Settings to bring up the Calc Settings dialogue box Calc Settings Latitude Longitude Height above waterline Height 5D W Use Receiver Position i Fallback Smoothing e EGM 0 EGMOB f User Je Elevation Mask 10 Calc Settings lt is optional but not essential to enter a trial point into Verify QC to start the positioning process Entering the current appr
38. 1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 SPRINT_Tides txt General Description The SPRINT_Tides txt file contains the current UltraTide with the opposite sign compared to the Ultra Tide contained in the Tidelnfo txt and Doodson txt files This file contains comma delimited strings with variable length fields Null fields indicate that no information is currently available they should not be interpreted as zero A checksum is included for extra robustness Negative tide is high tide and positive tide is low tide respectively 12 20 22 09 2006 0 88 Field Field Name Format or Units Description amp Comments Number Hours Hours in the day UTC Time for which all information in the string is valid Minutes Minutes in the day UTC Time for which all information in the string is valid Day Day in the month MM Month in the year UltraTide hh hh metres Local UltraTide based on the Mean Sea Surface derived from the Doodson filter First available after 39 hours Set as 99999 99 when no UltraTide value is available Fixed end delimiter real time output only Rev No A3 Page 148 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual
39. 2 DGPS fix 5 Ultra or Apex fix Antenna Height mmm mm Relative to ellipsoid meters Range 999 99 to 999 99 ddd dd Vessel course over ground degrees from North O Velocity SS SS Vessel speed over ground knots Range 0 00 to 999 99 PDOP Dp pp PDOP Fixed end delimiter 1 Looss C Longitude dddmm mmmmmm Degrees and decimal minutes 6 digits on the decimal minutes i CG sch sch sch Rev No A3 Page 140 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Rev No Date Veripos Applications Axiom The Axiom INS message is a proprietary message containing the variables required for the VERIPOS INS Module Axiom INS General Description This string is comma delimited but with fixed length fields A checksum is included for extra robustness The string is 87 characters including the character and the checksum INS Ahmmss ss ddmm mmmmmmm a dddmm mmmmmmm b D P hh h pp p vv v h hh g gg l ll cc c ss s r rr t tt U UU W WW X XX y Vy Z ZZ NNNN gp xx X gp gl xx x gl c lt CR gt lt LF gt GPINS 120102 00 5708 7102489 N 00217 1179453 W 1 1 0 6 1 1 0 9 137 57 50 72 27 20 190 8 53 0 007 0 04 0 04 0 03 124 22 0 04 0 04 0 04 0081 10 02 04 05 07 10 16 20 23 29 30 9 04 05 06 13 14 15 20 21 22 5A Comment senior sns INS fixed field that identifies the string Field Name F
40. 2 W 57 12 04 922 N Latest Date Time 63 695 5 April 2015 14 00 00 Converged 6 April 2015 09 40 03 Active 57 12 04 921 57 12 04 921 57 12 04 922 57 12 04 921 57 12 04 922 Sr 12 04 921 57 12 04 921 57 12 04 921 57 12 04 922 57 12 04 921 57 12 04 921 57 12 04 921 57 12 04 922 002 11 32 271 WV 002 11 32 272 WV 002 11 32 272 VV 002 11 32 271 WW 002 11 32 273 W 002 11 32 272 WV 002 11 32 272 WW 002 11 32 272 VV 002 11 32 274 WV 002 11 32 272 VV 002 11 32 270 VV 002 11 32 272 W 002 11 32 273 WV PATACA TA a EE es a EA 57 12 04 921 57 12 04 922 N 57 12 04 923 N 57 12 04 922 N 002 11 32 275 WV 002 11 32 274 VV 002 11 32 273 WV 002 11 32 273 W Mean Height Height SD Min Height Max Height Average Height 10 Minute Interval 040415 O5 0415 06 0415 Tides View Table and Time Series Rev No A3 Date 09 09 2015 Page 77 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The Tides View includes several sections including the Tidal Height table the MSS Calculation table the Input Status Table the Current Status table and the time series graph Tidal Height table Number of height samples used for deriving listed results Minimum Minimum of heigh
41. 5 B 16 58 D C3 Tananger A P0 9 Ze EE O CA Netherlands Al Ji D 7s OH CS Falmouth 237s ll PERE O CE Kristiansund A J26 78s PS 2E 5s die E 3 3 C7 Bodo A i295 B 27 93 OCH Bologna Alffitts Bi itis C3 Hammerfest AT Toi 23 15 D C10 Vardo AH B 345s Os 40s ols 120s Os A Veripos LBR1 Serice RICH D Ext RTCM Latency View Page 63 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The view contains separate columns for the various differential services provided by VERIPOS The VERIPOS Ultra and VERIPOS Apex messages contain orbit amp clock correction data for the GPS and GLONASS satellites VERIPOS Standard messages contain correction data for the L1 GPS ranges at the reference stations VERIPOS GLONASS messages contain correction data for the L1 GLONASS ranges at the reference station The green circle next to the reference station name indicates the receipt of the reference station location information This circle is red if this information has not yet been received viewed at start up Verify QC will not use differential corrections from a reference station until its location is known The station locations are saved to file so that Verify QC does not wait to reacquire them every time the configuration is restarted The left hand edge of the bar shows how old the current correction was when first re
42. 5 00 16 00 17 00 330 Below task 160 Healthy 189 Healthy DOP View Keyboard space bar is used to animate the display illustrating satellite geometry changes over time Holding down space bar causes the vertical bar to move along the time axis until the space bar is pressed again All associated information on the view is updated Use left or right arrow keys to adjust the display at 5 minute intervals The time bar can be dragged with the mouse to any required location DOP View Key Line Colour Detail S Red Predicted HDOE Satellites below the mask ____ O SSS Satellites below the mask Unhealthy satellites unavailable for positioning Red Disabled The animation can also be started by right clicking on the DOP view and selecting Start Animation Rev No A3 Page 58 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 By default the DOP view predicts the Next 6 Hours Time windows of the DOP view can be increased to the Next 12 Hours to display a Full Day Set the Display Mode using right click in the DOP view Poe a en a ext 6 Hours Start Animation Next 12 Hours EA Full Day Position Hide Glonass Size to Content DOP View Display Mode Right click can also be used to hide GLONASS constellation details 8 2 3 Almanac This is an Advanced View See Appendices for detailed d
43. 5 MSS Tides Tides calculation is available only with dongles specifically enabled for Tides and Apex and or Ultra If the dongle is not Tides enabled the MSS Tides menu option will NOT be shown in the Config menu Tides calculation creates Tides estimates relative to two different vertical references e Geoid Tide relative to the Geoid model selected in the Calculations settings dialogue It is an instantaneous tide estimate generated soon after the Tides calculation is initialised e Ultra Tide This is calculated relative to Mean Sea Surface The Ultra Tide calculation requires 39 hours of historic height information to be available before a tide estimate can be generated Select Config Calculation MSS Tides to configure the Tides calculation Position Talker Interval 10 minutes Output Every Second Time Reference pia co Output Format wraTide Server Socket is Group Tides dialogue 5 4 5 1 Tides Directory The Tides files are stored within the Config Config Name Tides directory 5 4 5 2 Tides Position The position input is defined here Users can choose from Apex and Ultra depending on which features have been enabled on the dongle Rev No A3 Page 37 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 5 3 Talker Choose the Talker between VQC and Standard lf Standard is selected
44. 584 The following logic is applied for the station selection for Closest Stations calculations Only stations within 1500km range are selected Only VERIPOS stations are selected non VERIPOS stations are excluded A Standard calculation only selects stations with RTCM Type 1 messages A GLONASS Only calculation only selects stations with RTCM Type 31 messages A Standard calculation first selects stations which provide both RTCM Type 1 and RTCM Type 31 messages The remaining station slots are then filled with stations that only provide RTCM Type 1 messages ae E 5 4 2 4 DGNSS Calc Stations Where As Selected Below is selected users can select the Stations to be use in the calculations All reference stations that were defined on each of the RTCM inputs will be available in the Stations box in the calculation dialogue box Select the required reference stations by ticking that box in the list If more than one station is to be selected highlight the range of stations to be used and select a tick box This will tick all of your highlighted stations Mame Mode Veripos Standard ad selection as Selected Below S stations jw Aberdeen 777 wig ck 701 IM Metherlands 702 Wel Bodo 703 iw Kristiansund 704 Height Aid ees DGNSS Calculation Stations The stations will appear differently if you selected Closest 10 Stations under the RTCM Input Then the closest VERIPOS station
45. AZ Azimuth This is a horizontal angle measured in degrees from the north direction to the direction of the satellite This is relative to the user s location CA amp L2 This is the SNR value measured in dBHz of the carrier at frequencies L1 and L2 respectively L2 frequency is only available when using a dual frequency receiver with a dual frequency antenna Rev No A3 Page 57 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 2 2 DOP The DOP view displays data available from the GPS GLONASS Almanac providing a 6 12 or 24hour window used when planning The range of information includes satellite status and location as well as the number of useable satellites above the elevation mask at the users location DOP GPS Healthy g S PRN Eley Azi Status GDOP 1 450 GLONASS Healthy 7a 218 5 S 64 125 Healthy PDOP 1 132 Unhealthy LS Sr 03 289 Below Mask HDOP 0 702 Sats eo ma 41 140 Healthy YDOP 0 888 eae OS Lef 01 004 Below Mask Below Mask 20 039 Healthy POOP 45 294 Healthy 02 160 Below Mask 65 223 Healthy 15 176 Healthy 10 247 Healthy 08 O66 Below Mack 69 090 Healthy Mack 10 00 Slot Eley Aa Status DDT 230 Healthy 31 232 Healthy 34 052 Healthy 20 018 Healthy 14 068 Healthy 06 331 Below Mack 306 Healthy 10 00 11 00 13 00 14 00 1
46. C Start Verify QC on the LD6 Confirm that the firmware version running on your LD6 supports Verify QC Go to Actions and using the mouse click on icons to calibrate the screens attached to the LD6 Follow instructions on screen 0 13 Select action below Factory Log Off Reboot Shutdown Reset Calibrate Calibrate A Screen 1 Screen 2 PP S Check the LD6 correction signal status From the home screen go to LBand Status and if necessary request from Veripos Helpdesk that the appropriate Veripos correction service s for your work are enabled lf corrections are not available to Verify QC running on the LD6 the quality and accuracy of position output is restricted Go to Actions Apps QC Mode and select Yes to launch Verify QC Allow the LD6 to launch Verify QC You can now start to use Verify QC with the monitor screen using the mouse and keyboard Rev No A3 Page 8 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 3 FUNCTIONAL OVERVIEW To custom configure Verify QC the user can work from left to right along the menu bar to complete the Verify QC software configuration 3 1 MENU STRUCTURE Menu icons along the top menu bar contain all the necessary dropdown menus to configure operate and adjust Verify QC for optimum operation Fie Config Logging Action View Tools Window Help ii e GPS 08 GLO Coo ci V
47. CO Axiom ODemo Dongle View A3 Page 102 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 11 1 2 Dongle Upgrade Help Dongle Upgrade allows the user to save the current dongle code to a USB memory stick This code is needed to request a dongle upgrade or extend the dongle duration with the VERIPOS Helpdesk Upgrade Dongle status Code D400 SKEN AJM S900 0000 0000 02T 2P02 Received Code Load Upgrade Cancel Verify QC Dongle Status Code The Save button will create an ASCII file on the USB memory stick with the name status dsf This file can be sent by the user to the VERIPOS Helpdesk as an email attachment VERIPOS help desk details helodesk veripos com Once the VERIPOS Helpdesk returns an upgrade code the code will be required to be saved in a file named upgrade dsf save file onto USB memory stick and insert into LD6 Go to Help Dongle Upgrade press Load and the upgrade code will appear in the text box in the middle of the window Press Upgrade and the code will be applied to the dongle and a confirmation code will be returned by the software Users are required to send this confirmation code to the VERIPOS Helpdesk to record a successful upgrade Failure to do so may result in dongles not accepting future updates When the codes have been entered the user can check if the upgra
48. Change Calculation Added Calc 1 April 2015 10 13 05 Configuration Change RTCM Input Station Data 1 April 2015 10 07 03 Configuration Change RTCM Input Removed RTCM Input 1 April 2015 09 59 51 Configuration Change RTCM Input Removed RTCM Input 1 April 2015 09 59 47 Configuration Change RTCM Input Removed RTCM Input 1 April 2015 09 51 00 Configuration Change RTCM Input Added RTCM Input 1 April 2015 09 50 50 Configuration Change RTCM Input Added RTCM Input 1 April 2015 09 50 37 Configuration Change RTCM Input Added RTCM Input 1 April 2015 09 50 11 Configuration Change RTCM Input Removed RTCM Input 1 April 2015 09 50 02 Configuration Change RTCM Input Removed RTCM Input 411 April 2015 09 49 50 Configuration Change RTCM Input Removed RTCM Input 1 April 2015 09 48 09 Configuration Change RTCM Input Station Data User Entry changed from MF3 to Use Closest 3 Not NTRIP Not NTRIP 1 April 2015 09 47 58 Configuration Change RTCM Input Station Data 1 April 2015 09 47 50 Configuration Change RTCM Input Station Data 1 April 2015 09 47 15 Configuration Change RTCM Input Added RTCM Input 1 April 2015 09 46 45 Configuration Change RTCM Input Added RTCM Input H 1 April 2015 09 46 14 Configuration Change RTCM Input Added RTCM Input 1 April 2015 09 03 44 Configuration Saved Note Filename D Weripos VQC Confi 1 April 2015 08 25 44 Configuration Change Calculation Add
49. Document No Verify QC v1 12A on board LD6 User Manual AB V MA 00584 W Position GNSS Rx Latitude Wisso4 Longitude v sso4 Height GAG SA4 Reduced Height EGMS6 veripos 57 12 04 57054 M 002 11 32 09890 Vu 115 71 m 65 18 m 50 54 m Position View Position Table Position Table When the Tides function dongle dependent is enabled the Position Table for Apex or Ultra will include three extra rows Additionally the user will enter height of the antenna above the waterline and the calculated MSSTide and Geoid Tide values which are displayed Ultra 16 32 33 UTC B7 UD 42 607 16 N Latitude vase Longitude GG Height CG Gd Reduced Height EGM96 Ant Height Geoid Sep EGM9S Moa Tide M33 Geoid Tide EGM96 O02 VP OF 04771 W 166 49 m 137 77 mi 0 00 m DU 72 m Mot 4yvailable 1377F m Position View Position Table General Statistic Table The General Statistics Table provides the main statistical parameters associated with the calculated position Confidence Power F Test Degrees of Freedom Unit Variance HMG Semi Major Semi Minor Angle POOP HOOP WOOP SOs CMG Ekka HO Passed EN O 209 0 005 0 036 0 031 160 900 1 479 D Sib de DODim s 169 5 611 G14 G17 G19 G20 G28 G32 HOA ROS ROG R13 R14 R20 R21 R22 Position View General Statistics Table Rev No A3 Date 09 09 2015 Page 73 Verify QC v1 12A on b
50. Float RTK 6 Estimated dead reckoning 7 Manual Input Mode 8 Simulation Mode number of satellites in use pp horizontal dilution of precision S X h h M M X Verify QC supports 4 variations of the NMEA GGA These variations are o GGA Default number of SV s can exceed 12 and sentence length can exceed 82 characters Increased precision 7 decimals for Lat amp Lon o GGA DP fully NMEA 0183 compatible string Number of SV s is limited to 12 and the sentence length is restricted to 82 characters A3 Page 124 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 o GGA Alstom number of SV s is limited to 12 and the sentence length can exceed 82 characters The latency value equals the actual latency divided by 12 for DGNSS solutions and divided by 36 for the Ultra or Apex solution o GGA PPP number of SV s can exceed 12 and sentence length can exceed 82 characters The DGPS QI parameter offers the full range from 0 9 It will show 5 for an Apex or Ultra solution and 2 for a DGPS solution Increased precision 7 decimals for Lat amp Lon NMEA GLL Sentence The NMEA GGL sentence provides 2D position data Structure and Example GPGLL ddmm mmmmmmm a dddmm mmmmmmm b hAhmmss ss S cc lt CR gt lt LF gt GPGLL 5708 7104685 N 00217 1169613 W 062859 00 A D 72 GLL sentence d
51. Height 13 00 Number of SVs 7 Number of SVs Unit Variance si 13 00 Delta Height 13 00 Unit Variance Time Series View 8 5 2 2 Difference The Difference View show the differences in position between each consecutive position fix This is an indication of positioning stability View shows the 1 differences for each calculated position including Number of SV s and the Unit Variance 8 5 2 3 UKOOA The UKOOA View shows the primary statistical parameter present within the UKOOA output The view includes the Semi major axis Unit Variance Internal Reliability 2D External Reliability and RMS 8 5 2 4 Statistics Shows range of general Statistics namely HDOP PDOP RMS Number of SV s Number of Stations and Latency Rev No A3 Page 85 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual AB V MA 00584 8 5 2 5 Scatter The Scatter View shows a 2D North East scatter plot of the positions This view has the following appearance Lea o D Eil Time Series Apex Position Difference UKOA Statistics North East Scatter DND DH TC Ultra wi Apex STE i STD2 wi PPF REF I Trial Point a Time Scale 20 Minutes Plot North East Scatter Time Series View Scatter Plot In addition to selecting the five predefined views users can customise each view with the Time Scale and Plot pu
52. K 601 ENKE KA G3 20 D a wech k LOL O LOL CD oi Oo SE G2 50 DI PI bo e ook Di oO Co bP P O E OO Da0 LU GO CO CN ay WE EE Di oO elei kO pay pes Di amp SR Gi LA CH CD a hI Co ICH SS oi Oo 107 45 SNR Measurements View GPS satellites are identified by their PRN number and are preceded by a G GLONASS satellites by their slot number and are preceded by a R The slot number for GLONASS refers to the transmit frequency slot for each satellite GPS uses a pseudo random code number PRN to identify satellites Clicking SV AZ EL L1 or L2 changes the vertical order in which the window displays the data Right clicking will do the same using a menu This allows selection of the GPS Source Feature only available when a second GNSS receiver input is configured for the Heading Calculation sort By Se a GPS Source GPS Source z vw Display GLONASS Secondary Heading Rx e S Size to Content Size to Content SNR View Options SNR View SV Space Vehicle For GPS satellites this is the Pseudo Random Noise code a unique identifier for each satellite GLONASS satellites use the slot number as unique identifier for each satellite Indicates the unique slot in the GLONASS constellation EL Elevation The elevation angle measured in degrees that the satellite resides above the horizon at the user location
53. OOA 2 outputs are in line with the recommendations used within the UKOOA standard The primary objective of the formats is to provide an output containing all the main proprietary advanced positioning and QC information used by the majority of navigation systems and DP systems within industry The formats allow the transfer of enough information to produce statistical testing when required and contain the positioning and QC information required by navigational systems The VERIPOS formats contain also extra information unique to the VERIPOS system The format is variable in length as it includes the number of satellites and the PRN numbers of the satellites used in the calculation Additionally the number of reference stations used and their ID s are included As these fields change length of the message changes also To assist with integration to the other systems the variable fields are included at the end of the message and the length of the message is included at the start A3 Page 129 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 WesternGeco TRINAV Sentence Example 0102 1 Verify108 501 486140 0 2 0 23 56 73661N 096 17 34229W 4 2 0 8 1 6 1 28 0 06 0 00 0 06 0 48 0 3310 3 2101215 18 21 24 26 29 30501502503 WesternGeco TRINAV sentence defined content em mmm commons Antenna height above WGS84 ellipsoid See comme
54. OS Apex or Ultra heights during the Averaging Period This is an indication if the variation of the height due to vessel motion and position quality LA Minimum of Heights hh hh metres Minimum of the VERIPOS Apex or Ultra heights during the Averaging Period Maximum of Heights hh hh metres Maximum of the VERIPOS Apex or Ultra heights during the Averaging Period 15 Doodson hh hh metres Estimated tide less antenna height above Mean Sea Surface from the Doodson filter First available after 39 hours 16 Ultra Tide hh hh metres Local tide based on the Mean Sea Surface derived from the Doodson filter First available after 39 hours 7 Geoid Tide hh hh metres Local tide relative to user selected Geoid see field 22 Available instantaneously after user configured hold off time Antenna Height hh hh metres User entered height of the antenna above the waterline hh hh metres Local offset between the user selected Geoid and the WGS84 reference ellipsoid wech E Geoid Separation The draft Calculated as the current Doodson value minus the Doodson e Vertical Bias hh hh metres Geoid Model value for the first record The vertical bias detected between Ultra Tide and Geoid Tide Calculated as Antenna Height minus Doodson plus Draft EGM96 EGMO08 or USER depending on user selection Fixed end delimiter esch esch ch sch A3 Page 147 09 09 2015 Verify QC v
55. P Warnings Request Ephemeris CSL Raw Output GLON ASS Request Almanac Send Command Request Iono Action Menu 7 1 RECEIVER Note GLONASS entries in the menu are only available if the dongle has been enabled for GLONASS Establish and Set receiver Baud Rate entries are only available when a GNSS receiver has been connected using a serial port and set to communicate at matching baud rates 7 1 1 Details Action Receiver Details displays details of connected receiver hardware and software Details vary on the receiver type used Typically they include the receiver serial number and firmware version Receiver Details el tn A Recelver septentria AsteRx Serial Number 20634 Receler Mame Astez Receler Version A GNGG Eu 2 1 Receiver Details View The view will populate only when Verify QC is connected to a receiver This example is for a Septentrio receiver Rev No A3 Page 49 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 7 1 2 Initialise Action Receiver Initialise sends commands to configure the receiver for use with Verity QC Note this does not set or change the communication parameters Interface the GPS receiver to Verify QC using Config GNSS Rx prior to using this command Users are not required to initialise the receiver once the software is operational Required when se
56. PS GLONASS satellites users can disable satellites in the matrix on the Verify QC menu bar at the top of the screen Unhealthy satellites are already shown in yellow Individual satellites can be disabled and removed from all calculations by clicking on the satellite number This number will be in red to indicate its disabled status Rev No A3 Page 60 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Click on the satellite number to Toggle between enable disable Fil Config Logging Action View Tools Window Help Hee CRAZ GPS 01 02 03 04 05 Ob 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 256 27 26 29 30 31 32 Glonass 01 02 03 04 05 06 OF O8 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 SV Disable Enable Note Use this facility with caution The status of any disabled satellite should be frequently reviewed Leaving healthy satellites in a disabled condition can seriously reduce positioning accuracy and stability 8 2 5 Missing SV Constellation Plot The missing SV Constellation Plot indicates satellite observations missing for one or more epochs Verify QC uses the GPS and GLONASS almanac to determine the satellites above the user s elevation mask and their visible position If a GPS or GLONASS observation is not received a dot with the GPS PRN GLONASS slot number is indicated
57. Passed 0 Simple 0 199 Passed 0 313 Passed H 0 322 Passed 0 0 557 Passed 0 0 389 Passed D 1 930 Passed 1 321 Passed 0 256 Passed 1 904 Passed 0 473 Passed i i H i 0 138 Passed R24 Ultra i i l 0 660 Passed Degrees of Freedom Unit Variance Semi Major Semi Minor Advanced Position View Right clicking in this window allows editing of the position calculation or copying contents to clipboard for use in another word application Calculation E aag Copy Ultra Apex Size to Content EE Temmmmmmmmmmg Position View Options The Advanced Position View includes several sections including Positions Table General Statistics Table Notes Table Error Ellipse View Constellation View Position Table The Position table displays the calculation name the time UTC and the geographical coordinates These include the height above the WGS84 reference ellipsoid Using the Geoid model selected by the user in Config Calculation Settings EGM96 EGMO08 or a user defined Geoid separation this ellipsoidal height is also split into a Geoid separation and height above this Geoid The reference for each coordinate and height value is indicated between brackets The right hand column gives standard deviation of the individual coordinate components The bottom row displays current calculation mode Rev No A3 Page 72 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title
58. S Standard VERIPOS Standard or GLONASS Only Please note that the VERIPOS demodulator will have to be enabled accordingly for the individual services required within Verify QC Mame Mode Yeripos Standard 7 Selection Uncorrected Stations Veripos Standard GLONASS Only Yeripos Standard CA Falmouth JES Kristiansund Height Ad een DGNSS Calculation Mode Selection 5 4 2 3 DGNSS Calc Selection When Selection is set to As Selected Below the user can manually select a preferred list of stations from the Stations list for use within the calculation This list is derived from the stations that were defined under Config RTCM Input Alternatively a Closest Station calculation can be created Verify QC can automatically select the closest between 1 and 6 stations within a 1500km range for use within a calculation Choosing one of these settings means manual selection of stations is no longer presented as an option Name Mode eripos Standard i selection as Selected Below il SLALIONS TEE tote Ble eer Closest 6 Veripos Stations Closest 5 Veripos Stations Closest d Yeripos Stations Closest 3 Yeripos Stations Closest 2 Yeripos Stations Closest Veripos Station DGNSS Calculation Selection Rev No A3 Page 31 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00
59. S TIME OF LAST OBS 0 OF SATELLITES END OF HEADER RINEX View Header The RINEX Stats view shows the current logging path and the size of the current data file E RINEX Mixed Observation Data File Stats Measurements Header 204590 RINEX View Stats Rev No A3 Page 98 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 9 TOOLS The Tools menu offers a small selection of amenities to enhance Verify QC operations Fie Config Logging Action view EEJ window Help DH o GPS GLO Lock Contig Gei Scesnced Or Tools Menu Structure 9 1 LOCK CONFIG The configuration file in use can be secured by means of a password Using Lock Config allows file protection by the entry of a password at least 6 characters long It is recommended that all Users are advised of this password for access to the configuration once it has been locked Locking the configuration file will disable access to configuration menus However users can still change the window display and make any other cosmetic changes Lock Config Password Confirm cca Lock Config Rev No A3 Page 99 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 9 2 ADVANCED OPTIONS The user can disable certa
60. S antenna relative to the user selected Geoid model Points are added at an hourly interval Hourly Tide Time series plotting the minimum maximum and mean height of the vessel waterline relative to the Tide filter estimate of Mean Sea Surface Values displayed are called Ultra Tide Points are Rev No A3 Page 76 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Document No Verify QC v1 12A on board LD6 User Manual AB V MA 00584 P added at an hourly interval MSS Reference Draft Change Time series plotting the Tide filter estimate of Mean Sea Surface Points are added hourly Time series plotting the change in Draft This is calculated as the current Doodson value minus the Doodson value for the first record Time series plotting the vertical bias detected between Ultra Tide and Geoid Tide Time series plotting the User entered height of the antenna above the waterline As entered in Config Calculation Settings Vertical Bias User Entered Antenna Estimate is only available after 39 hours of continuous operation The first five time series contain three separate lines for the minimum red mean blue and maximum green height or tide values MSS Apex Tides 10 Minute Interval AF MSS Calculation Average Height 10 Minute Interval Mean MSS 63 893 Time Count Average Std Dev Minimum Maximum Ave SD Latitude Longitude Geoid Sep Count 33 002 11 32 27
61. Verify QC Note Use VeriChart planning software available from help veripos com to determine the stations appropriate for the work area Verify QC will NOT use any selected stations that are 2500km or more from the users location in the DGNSS calculations The reference station selection in the VERIPOS IMU and in Verify QC need to be matched such that all stations required for calculations in Verify QC are also enabled on the corresponding RTCM output port of the IMU RTCM Input Name Station Data iw VWeripos Secondary via NTRIF Mode User Configurable 4 Beam AOR vd stations 1 Aberdeen 777 Wick 701 Netherlands 702 Bodo 703 Kristiansund 704 Additional Stations Ed Input lO Device Client Socket ad IP Address localhost Port 8000 cnet RTCM Stations 5 2 1 8 Additional Stations Previously undefined VERIPOS stations can be added to the station list of a VERIPOS beam You will need to add these when VERIPOS announces a new station available on that beam Users can add a station by selecting Edit under Additional Stations The Additional Stations dialogue will open and new stations can be defined edited or deleted Rev No A3 Page 21 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Additional Stations for AOR E New Added Station RT Ch ID 123 omea _
62. Vveripos Verify QC User Manual Version 1 12A for LD6 VERIPOS a a Il WE NEG 09 09 2015 Updated features REVISION DATE DESCRIPTION ORIGINATOR CHECKED Document Title pe rr aa rr ee o T o AR RR A8 27 04 2015 Updated following review AR RM RR AR RR AR RR AR gt Verify QC v1 12A For LD6 User Manual EM APPROVED CLIENT APPR Document No AB V MA 00584 File Ref AB V MA 00584 doc Kees veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 CONTENTS 1 INTRODUC TION WEE 4 1 1 DIFFERENCES WHEN USING VERIFY QC ON THE UD 5 t2 Pe AE AN rt LEE 6 2 STARLING VERIFY QG EE 7 21 DONGLE DRIVER EEN 7 Ze CREMER 7 3 FUNCTIONAL OVERVIEW RE 9 SN TR RR E 9 3 2 DONGLE DERDENDANTEUNGCTIONGS ceseecceeseeeeeeseeeeeeseeeeeeseeseeseeeeeeeseaeeaueeaeeaeeneeeensneeees 9 33 USER SELECTABLE FUNG TIONS E 11 4 FILE MENU E 12 Al EDO DERA UCT EE 12 An NES NEE 12 A AUTOSTA RE 12 4 4 PREVIOUS VERIFY QC CONFIGURATION FILES 20 0 ieee ecceeceeeeeeeeeeeseesaesuesaeeeeneesaeseeas 12 4 5 COPYING VERIFY QC CONFIGURATION FILES FROM USB MEMORY STICK 13 5 CONFIGURATION WEE 14 5 1 CONFIGURE GNSS RECEIVER 2 00 0 0 ccccceccceccecccecceccceccecccuececcuecesccucceceuesacececsucecueeesecusseeecueseesenens 15 Sc CONFIGURE BIG INPUT E 17 53 DEMODULATORINPU EE 26 54 CALCULATION E 27 D Geng Kei Kn CR EE 42 PO E e E e EAR CR EE 44 6 Keieecl Le 45
63. Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The polar plot is used to indicate the status of the corrections and the local observations The legend at the right hand side of the chart gives an interpretation for each colour used Details for GLONASS constellation can be hidden right click on the view and select Hide GLONASS 8 3 3 Station Map View Differential Station Map opens a map of the user work area The map is scaled automatically to fit the users location and the location of all reference stations selected in RTCM inputs and from which station location information has been received Station Map C1 Aberdeen Okm C2 Wick 156km C3 Tananger 503km C4 Netherlands 726km fell Vardo C5 Falmouth 805km C6 Kristiansund 856km 1403km 1688km CH Hammerfest 1927km C10 Vardo 2140km Elevation Azimuth aa 110 237 149 24 196 Station Map View Options are available using right click Copy Hide Tables Hide Legend Al Show All Veripoes Stations Mone Show Global Coverage ADRE AORE 25E IOR 143E POR JEW Station Map View Options Page 66 Rev No A3 Verify QC v1 12A on board LD6 User Manual Date 09 09 2015 Document title Document No Rev No Date veripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 The map can be copied as an image and the tables and legend can be hidden By default the
64. acter of the data string being output minus the time of position the datum for height calculations separation between mean sea level and the WGS84 reference ellipsoid based on a Geoid model as for example EGM96 Altitude hold 2D Fix Dual Frequency 4 is added to the above values when positioning is set up for dual frequency calculations StatusCode Meaning O oO No or Bad Fix Atude hold 2D Fix o Altitude Aiding Weighted Height used in Fix Internal Reliability External Reliability Co variance 95 Error Ellipse 10 Orientation 11 F Test Rev No A3 Date 09 09 2015 smallest outlier that is likely to be detected by the current solution maximum positional effect of an undetectable error in an observation This quantity is related to the Power of the test probability that the MDE would be detected and the Significance level used The Variance and Covariance terms are elements from the variance covariance matrix of the position fix computation un scaled Shows 95 confidence level of the semi major and semi minor axis of the error ellipse Orientation of the semi major axis degrees from true North A test applied to the Unit Variance A Fail may result from large outliers in the measurements Page 137 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 VERIPOS UKOOA 2 Sentence Examp
65. ated functions Ultra is a PPP Precise Point Positioning calculation offering decimetre level accuracies introduces the Apex calculation and associated functions Apex is a PPP Precise Point Positioning calculation offering decimetre level accuracies introduces a combined GPS GLONASS calculation and associated functionality Note The combined GPS GLONASS calculations are only available when a Topcon Septentrio AsteRx or NovAtel receiver is selected LD6 receiver pre configured introduces an additional interface for output of P2 94 records to the Concept Systems Limited CSL VIGPS process in various CSL navigation products introduces a Tide calculation and associated functions This function requires the Apex or Ultra service to be enabled on your dongle The Tide calculation estimates the real time tide at the users location based on the high accuracy Apex or Ultra positions introduces a virtual base station RT CM Output based on the current PPP position which is used as a virtual reference station location This function allows highly stable and accurate DGPS corrections to be calculated and then be output to external DGPS systems or a telemetry link For use with the VERIPOS 4D positioning software suite You can check the dongle enable status in Help Dongle View If a function you require is absent contact the VERIPOS helpdesk for information assistance and to order a dongle upgrade Rev No A3 Date 09 09 2015
66. ay option puts the user into real time mode and jumps to current time Refresh the screen Back button for stepping between previous zoomed areas le lee Forward button for stepping between successive zoomed areas The right mouse button in the window of both the time series and scatter plot accesses menu to change the Time Scale Time Scale 20 Minutes Reference Position 40 Minutes 1 Hour o PY Hours Size Eo content 4 Hours Time Series View Options Rev No A3 Page 87 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Change the Y scale of the vertical axis by moving the mouse pointer to the vertical axis and double clicking Select Automatic or customise Delta East Edit Y Scale K Automatic User Defined Minimum D Maximum D Range E Centre D Ling mn cance Time Series View Y Scale The Time Series view can be copied to the PC s clipboard as a bitmap image for pasting into MS Paint or MS Word Rev No A3 Page 88 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 5 3 Overall Status View Overall Status opens a detailed summary view of the GPS GLONASS and RTCM data input status the calculation status and the data output status and provide
67. cator First character is for the GPS system the second character for the GLONASS system N No Fix A Autonomous D Differential P Precise R Real Time Kinematic F Float RTK E Estimated M Manual Input Mode S Simulation Mode SS number of satellites in use p p horizontal dilution of precision h h antenna altitude above mean sea level g g Geoidal height l l age of differential GPS data nnnn Differential reference station ID 0000 to 1023 cc lt CR gt lt LF gt checksum carriage return and line feed Rev No A3 Page 126 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 NMEA VTG Sentence The NMEA VTG sentence provides the actual course and speed relative to the ground Structure and Example GPVTG p p T q q M r r N s s K u hh lt CR gt lt LF gt GPVTG 054 7 T 034 4 M 005 5 N 010 2 K 33 VTG sentence defined VTG Course over ground and ground speed p p course over ground T degrees True q q course over ground M degrees Magnetic r r speed over ground N knots S S speed over ground K km hr U mode indicator A Autonomous D Differential E Estimated hh lt CR gt lt LF gt checksum carriage return and line feed Verify QC supports 2 variations of the NMEA VTG sentence These variations are o VTG Default conforms to NMEA v3 0 standard and includes the m
68. ceived by Verify QC Since the messages are time stamped when generated by the reference station Verify QC is able to determine their age The right hand side of the bar advances across the display until a new correction is received Values next to the bar show the current age latency of the current correction message A threshold of 120 sec applies for Type 1 and Type 31 messages When this threshold is exceeded data Is rejected and the calculation mode changes to uncorrected as shown in the Calculation Status view A threshold of 600 seconds applies to for Type 15 messages and when this is exceeded the calculation mode of Standard calculations become uncorrected A threshold of 360 seconds applies to the Ultra and Apex correction messages and when this is exceeded the calculation mode Ultra and Apex become uncorrected The latency bar moves from left to right as the latency increases A traffic light colour scheme applies to the latency bars Colour Latency less than 50 of the threshold latency exceeds 50 of the threshold latency exceeds 75 of the threshold The view can be customised to hide the Standard Plus and or GLONASS columns or to hide the key The Time Period can also be changed this will not affect the latency thresholds for each of the correction message types The Key helps to identify each RTCM input Rev No A3 Page 64 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Docum
69. ceivers supporting NMEA should support this speed Note that at a baud rate of 4800 you can easily send enough data to more than fill a full second of time At 4800 baud 480 characters per second can be sent As an NMEA sentence can be as long as 82 characters this can be limited to less than six different sentences The actual A3 Page 121 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 limit is determined by the specific sentences used and it is easy to overrun the capabilities for rapid sentence response A cable is required to connect to the GPS receiver output Data can be output also via Ethernet or wireless connection For general NMEA use with a GPS receiver only two wires are required in the cable data out from the GPS receiver and ground Rev No A3 Page 122 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 C VERIFY QC OUTPUTS Verify QC can output the following NMEA sentences see 2 GGA Default GGA PPP GGA DP GGA Alstom GLL GST ZDA GNS VTG Default VTG Old GSA GSV In addition Verify QC can output the following advanced positioning and QC output sentences WesternGeco TRINAV see 4 WesternGeco TRINAV V3 see 5 VERIPOS UKOOA Output see 6 VERIPOS UKOOA 2 Output se
70. d and the Significance level used a The values recommended by UKOOA should be used see UKOOA Guidelines for The use of Differential GPS in offshore surveying Issue no 1 Sept 1994 i e a Significance level of test 1 and the Power of the test 80 b If values other than those given above are used this must be explicitly stated by the contractor c If no statistical testing takes place in the software or the value is not computed the external reliability must be set to 1 Fix status codes Single Frequency Status Code Meaning O No or Bad Fixes 1 Altitude Aiding Weighted Height used in Fix Altitude hold 2D Fix Dual Frequency 4 is added to the above values when positioning is set up for dual frequency calculations Status Code Meaning O 4 No or Bad Fix Altitude Aiding Weighted Height used in Fix Altitude hold 2D Fix No of ref stations gives the number of reference stations in use for this fix not the number of stations available This field must be set to 0 if the fix is not differential If numerical data is missing or can not be computed the value must be set to 1 Page 131 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Field Formats Ax Alphanumeric text Ix Integer Field Fx y Floating point field Where X gives the total length including the decimal point and decimals y the number of d
71. de has been applied as requested by selecting Dongle View to bring up the following view which will now contain the latest confirmation code Rev No A3 Page 103 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 11 2 REVISION HISTORY Provides a summary of the revisions of the previous Verify QC software versions 11 3 USER MANUAL The user Manual does not open on an LD6 unit The user should view the manual on a PC Or paper copy 11 4 ABOUT This opens the following dialogue box containing the necessary support contact information together with the Verify QC Software Version and the version of the Algorithms The software version may be requested if the user requires support to assist in resolving any technical issues About Yerity 1 124 LDG Verify 1 12A4 LD6 Ultra A UU bb Apex A UU DU Support enquiries should be made to Veripos via the ZA Hour Helpdesk Email helpdesk veripos com Support http fhelp veripos com Vveripos Copyright Verpos 2015 Verify QC About View Example Rev No A3 Page 104 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 12 LD6 FILE MANAGER The LD6 when used in QC mode provides a facility to manage files It is recommended to launch file manager
72. do range correction is better than 0 02 meter and for range rate correction is 0 002 meter second 1 scale factor for pseudo range correction is better than 0 32 meter and for range rate correction is 0 032 meter second oseudo range at the reference station This is the rate of change in meters of the pseudo range corrections Rev No A3 Page 80 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 User Differential Range Error An estimate of the performance of the satellites pseudo range as measured at the reference station in meters This number is provided as part of the RTCM Type 1 messages in the form of a binary code 0 to 3 0 lt 1 meter at 1 sigma 1 gt 1 meter and lt 4 meter at 1 sigma 2 gt 4meter and lt 8 meter at 1 sigma 3 gt 8 meter at 1 sigma IODE Data Ephemeris identifies the set of ephemeris parameters Gives the user a means of detecting change The PPP Ref position table displays the GPS week day and time and the geographical WGS84 coordinates for the Apex or Ultra solution The table also includes the height above the Geoid model selected by the user in Config Calculation Settings and the separation value from this Geoid model The column to the right shows the standard deviation of the individual coordinate components The rows underneath show the latency of the last received Apex Ult
73. e 7 GPLCT Veripos Applications Axiom References 2 4 5 6 7 Rev No A3 Date 09 09 2015 NMEA 0183 Standard for interfacing marine electronic devices version 3 01 January 1 2002 GPS and RTCM Formats Schlumberger 2002 Third Party Equipment GPS Interface Format WesternGeco 23 February 2009 Document AB R MD 01673 Data Format Definition UKOOA Format 03 October 2005 Document AB V MD 00511 Data Format Definition UKOOA 2 Format 30 June 2006 Page 123 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 C 1 NMEA SENTENCES Rev No Date This section describes the message structure of the following advanced positioning and QC output messages GGA GLL GST ZDA GNS VTG GSA GSV NMEA GGA Sentence The NMEA GGA sentence contains time and position fix related data for a GPS system It includes basic quality information which is limited to Fix Quality Number of Satellites in Use HDOP and Age of Differential GPS Data Structure and Example GPGGA hhmmss ss ddmm mmmmmmm a dddmm mmmmmmm b Q s p p h h M g g M x x annn c lt CR gt lt LF gt GPGGA 150207 00 5708 7100972 N 00217 1170486 W 2 10 0 9 137 44 M 50 72 M 6 4 0704 57 GGA sentence defined aC NoorS latitude hemisphere GPS Quality indicator 0 invalid 1 GPS SPS 2 DGPS fix 3 GPS PPS 4 Fixed RTK 5
74. e Message type to output from e NMEA WesternGeco TRINAV WesternGeco TRINAV V3 VERIPOS UKOOA Output VERIPOS UKOOA2 Output GPLCT Veripos Applications Axiom The NMEA message type allows users to select one or more NMEA sentences Of these the GGA DP GLL GST ZDA GNS VTG Default GSV and GSA all conform to the NMEA v3 0 standard Further options exist for the GGA and VTG sentences Options are GGA Default number of SV s can exceed 12 and sentence length can exceed 82 characters Increased precision 7 decimals for Lat amp Lon GGA Alstom number of SV s is limited to 12 and the sentence length can exceed 82 characters The latency value equals the actual latency divided by 12 for DGNSS solutions and divided by 36 for the Ultra and Apex solutions GGA PPP number of SV s can exceed 12 and sentence length can exceed 82 characters The DGPS QI parameter offers the full range from 0 9 It will show 5 for an Ultra or Apex solution and 2 for a differential Standard Standard or Standard GLONASS solution Increased precision 7 decimals for Lat amp Lon GGA DP fully NUEA 0183 v3 0 compatible string Number of SV s is limited to 12 and the sentence length is restricted to 82 characters VTG Default conforms to NMEA v3 0 standard VTG Old conforms to NMEA v2 3 standard The Axiom String is a proprietary string for use with VERIPOS INS Module Axiom Detailed descriptions of Verify QC position output
75. e Tides data from the LD6 for Post Processing firstly Archive the Tides data within QC Click Action MSS Tides Archive The following window will appear Archive Tide Logging Data File Splitting hone Delete files after archiving SR Archive lt is possible to split the Tides files during archive for ease of processing Select the desired file splitting option File splitting options are e None Files will not be split e Daily Files will be split daily e Weekly Files will be split weekly e Monthly Files will be split monthly If the Delete files after archiving option is ticked the original tides files will be deleted Note Deleting the tides files will reset the tides calculation Do NOT delete the tides files if you wish to continue to use the Tides calculation Select Archive button The data can be found in the following folder on the LD6 using the File Manager application Archive DateandTimestamp YYYY MM DDTHH MM SS Tides Rev No A3 Page 107 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 PS Archive Config TR a LOE OE Coni 2015 05 277 14 43 28 O Data Events History WG 2015 05 27114 43 28 Tides File Edit vw Archive GE Config LDE VOC Cony Tides B Data G Events History CH Tides CH Archive File Edit View C
76. e elevation mask at the user end are shown in white indicates if GPS and GLONASS ephemeris data for satellites above the horizon have been received Satellites below the elevation mask at the user end are shown in white indicates whether GPS L1 Type 1 GPS L2 Type 15 and GLONASS L1 Type 31 corrections have been received green for the listed satellites at each reference station Missing corrections are shown in red and satellites just above the elevation mask at the reference station without corrections are shown in orange Satellites below the elevation mask at the reference station are shown in white The circle before the station name indicates whether a Type 3 with the station position has been received green yes red no The circle after the station name indicates whether the correction data is within the latency thresholds green lt 60sec orange lt 90 sec and red gt 90sec indicates which satellites are included in the position calculation green Satellites not included in the calculation due to missing GPS GLONASS observations or their corrections or due to w test rejection are shown in red as are disabled satellites Satellites below the elevation mask at the user end are shown in white indicates the output status of each position output Green indicates a data message output recently and the number indicates the length of message The appearance of the view can be changed by selecting the relevant
77. e view expands to include the DGPS corrections for the satellites above the elevation mask set in the PPP Ref calculation configuration dialogue PPP Ref Calculation 1030 Wednesday 12 40 31 GPS 1030 Wednesday 12 46 31 GPS UDRE IODE Latitude W GS84 57 12 04 87788 N oe ta op Longitude DNGZDAI 002 11 32 15465 W op Height DANGCDAT 116 11 m Op Reduced Height EM 65 57 m Op Geoid sep EGMYb 50 54 m HN Latency UU Unit Mantapnce an Ultra GPS GLO_ PPP Ref View Position Status and Correction Data Table expanded view PPP Ref Differential Data Pseudo Random Noise code A unique identification number for each GPS satellite E g PRN 13 refers to the satellite that transmits the 13 weekly portion of the P code Elevation The elevation angle measured in degrees that the satellite resides above the horizon at the reference station location Azimuth This is a horizontal angle measured in degrees from the north direction to the direction of the satellite This is relative to the reference station location The delay in meters caused by the lonosphere to the GPS signal from the particular satellite An ionospheric delay value derived from the Klobuchar model in the Almanac The delay in meters caused by the troposphere to the GPS signal from that satellite at the reference station Value is derived using the Hopfield model This is the scale factor as a code which could be either O or 1 e 0 lt scale factor for pseu
78. ecimals If a sign or is included in the field the sign must be immediately adjacent to the number it relates to with no spaces in between i e 3 12 Alphanumeric text fields must be left justified and numeric fields must be right justified The field sizes are selected with a space between each field This aids manual readability and protects against overflow Rev No A3 Page 132 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Document No Verify QC v1 12A on board LD6 User Manual AB V MA 00584 WesternGeco TRINAV V3 Sentence The WesternGeco Third Party Equipment GPS Interface Format V3 was introduced on 23 February 2009 It describe a standard GPS interface format applying to all installations of Third Party GPS equipment interfaced to WesternGeco Marine Positioning Systems Example W GPOS 3 1 Verify1 08 501 486140 00 2 0 23 56 73661N 96 17 34229W 4 197 0 8 1 6 1 279 0 055265 0 002591 0 062898 0 482222 0 35 3 0 1 10 3 2 10 12 15 18 2 1 24 26 29 30 501 502 503 WesternGeco TRINAV V3 sentence defined Rev No Date Content Start Character Format Version Nav Point No System Name Version GPS Week Number GPS Time of Fix Age of Fix Latitude Longitude Height HDOP VDOP Unit Variance Variance Latitude Covariance Lat Long Variance Longitude Variance Height External Reliability Fix Status Computation Type Correction Type No of Satellites n No
79. ed Calc 1 April 2015 08 25 31 Configuration Change Calculation Added Calc Config Change Log View Rev No A3 Page 96 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 In addition to the software storing all configuration changes automatically the user can add notes to the log XML file The Add Notes to Config Change Log dialogue will open following a right mouse click on the view and selecting Add to Log Add Notes to Contig Change Log Title Poor SMF Just experienced a period of poor SMR due to crane masking the antennal Add to Log Cancel Config Change Log Add Notes Dialogue 8 6 3 RINEX View Logging RINEX opens the RINEX logging status view and displays the Measurements Header and Stats chosen from the option menu at the top of the view See RINEX standards for further details about the displayed RINEX data records 6 RINEX Mixed Observation Data Measurements Measurements Header Stats 15 4 1 13 25 d HDD O 4060461161961561 6 1eG2262462565RU5RU06 ROZROSR14R15R16R17R23R24 256439100 323 133683371 013 0 3696 275 40 250 25439103 431 104165675 369 0 3036 061 15 000 256246470 573 132671136 085 D 3291 058 435 250 25246452 096 103380131 424 D 2564 454 24 250 21430195 556 112616456 021 D 5686 909 DD DO 214350194 711 AFF Sooo Dep 456 5664 a7 000 20555512
80. efined GLL Geographic position Latitude and Longitude ddmm mmmmmmm latitude of position a Nors dddmm mmmmmmm longitude of position b E or W hhmmss ss UTC of position S status A data valid V data not valid mode indicator A Autonomous D Differential E Estimated M Manual S Simulator N data Not valid cc lt CR gt lt LF gt checksum carriage return and line feed NMEA GST Sentence The NMEA GST sentence provides error statistics of the position fix These statistics follow from the position calculation process Structure and Example GPGST hhmmss ss a aa b bb c cc ddd dd e ee f ff g gg hh lt CR gt lt LF gt GPGST 024603 00 3 2 6 6 4 7 47 3 5 8 5 6 22 0 58 GST sentence defined GST GNSS Pseudo range Error Statistics hhmmss ss UTC time in hours minutes seconds of the GPS position a aa RMS value of the standard deviation of the range inputs to the navigation process Range inputs include pseudo ranges and differential DGNSS corrections b bb Standard deviation of semi major axis of error ellipse meters C CC Standard deviation of semi minor axis of error ellipse meters ddd dd Orientation of semi major axis of error ellipse degrees e ee Standard deviation of latitude error meters f ff Standard deviation of longitude error meters g gg Standard deviation of altitude error meters hh lt CR gt lt LF gt checksum carriage return and line feed A3 Page 125 09 09 2015 Verify QC v1
81. ellation Plot Logging tl URURI View GNSS Menu SNR displays the Signal to Noise Ratios measured in dbHz for each GPS GLONASS satellite in view The following characteristics are displayed by the various GPS receiver types Rev No A3 Date 09 09 2015 A stronger signal is displayed when the signal indicator moves to the right side of the window The width of the signal indicator summarises the recent variation in signal strength A large hatched area indicates unstable tracking When the signal strength becomes critical the colour of the signal indicator changes to yellow and then red Parameters are set in the system Satellites at higher elevations have higher signal strengths and are less prone to noise All signals are normal in the figure below Page 56 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 El GPS Source GNSS Rx SNR Plot aaa G10 6B 152 50 39 RDZ SS LO BN 20 LO O ale ECH m E RRR D D Gel D e J LU kel D ha DG Cc a e J Cc o D UH tu hi a S g m R Ge SS ER IK fee bH E ee ee CHE b CHE ee CHE ee HE ee ee ee PC a Co 0 DI Oo oo ao oo b ee Bee BI ha eiio Od d F ee od E ee P O l DO 0 a a aa Oz ER Di CH nm Po oS taj Gd o7 G
82. ellipse Dilution of Precision is a measure of the strength of the satellite geometry at the receiver The DOP value can be used as a multiplier to the standard deviation of the GPS measurements to derive an estimated standard deviation of the position Horizontal DOP and Vertical DOP horizontal position VDOP Vertical DOP is an indicator of the strength of the calculation in the height component Speed over the Ground Course Made Good The bottom row of the General Statistic Table lists the PRN number of the GPS satellites used in the calculation Slot numbers of the GLONASS satellites is displayed Notes Table The Notes Table lists statistical parameters Rev No A3 Page 74 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Rev No Date veripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 tes nl PRA Station Resid FesidsD mde wStat wiest East North Up Passed 0 004 Passed 0 018 Passed 0 011 Passed 0 013 Passed 0 010 Passed 0 015 Passed 0 001 Passed 0 007 Passed 0 004 Passed 0 002 Passed 0 004 Passed 0 000 Passed 0 007 Passed 0 006 Passed 0 005 Passed 0 005 Position View Notes table This table displays the following information Station R d Resid S mae displays general information such as a reference station being out of range missing data or data being rejected a unique identification PRN or slot number
83. ent No AB V MA 00584 10 WINDOWS In the Windows menu all open Verify QC views can be selected or displayed in Tile or Cascade format Rev No A3 Page 101 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 11 HELP The Help menu contains utilities for reprogramming dongles and gives access to the revision history the User Manual and the software About details 11 1 DONGLE 11 1 1 View Helo Dongle View allows the user to see the current status of the Verify QC Dongle Fie Config Logging Action View Tools Window DR GPS 30 GLO VBW Revision History Upgrade About Help Dongle Menu The Dongle view displays the amount of time left on the dongle activation and the software features enabled for the dongle It also shows the most recent dongle upgrade Confirmation Code which has to be supplied to the VERIPOS Helpdesk after the dongle has been upgraded with new features Verify QC will remind the user by means of a pop up warning box when the dongle has less than 7 days remaining and is about to expire The number of dongle days remaining is also displayed on the Information Bar at the bottom left of the Verify QC screen Dongle 2117 has 552 days remaining W erify M ltra O Extra Mw Apex kl Glonass MCL Output kl Tides LJHeading Cale kel PPP Ret
84. ent title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 Arrival Mode All vw GLONASS Show Message Types Hide Key Time Period Size to Content Latency View Options The Latency View can operate in a Standard or Arrival Mode Users can set the mode by right click on the screen In Arrival Mode the Latency view only shows the age of the corrections when they arrive In Standard Mode the columns show the correction latency as bars Clicking on blue reference station names will open a Differential Data view for the station Clicking on the blue Ultra name opens the VERIPOS Ultra Corrections view Similarly the VERIPOS Apex Corrections view can be opened by clicking on the blue Apex name 8 3 2 Polar Plot Polar Plot displays information regarding the GPS and GLONASS satellite constellations at the users location and at the reference stations This view shows which satellites are in the sky and the status of these satellites Information is based on the reference station location and received GNSS almanac and live GNSS measurement information The polar plot will be empty if this information is absent TAN Polar Plot Below Mask Disabled Missing Unhealthy GPS Single Freg GPS Dual Freg GLONASS Single Freg GLONASS Dual Freg C8 Bologna c9 Hammerfest C10 Vardo Polar Plot View A3 Page 65 09 09 2015 Verify QC v1 12A on board LD6 User Manual
85. environment This aids analysis of the replay and provides an opportunity to describe any specific areas for review Logging Parameters Max Size 1400 Mame Test Log Motes Primary GPS Ze cancel Logging Parameters Information you enter is stored in the Logging Schedule ars file in the same directory as the Verify QC logging files Name field is used as the filename Once Path and Notes fields have been completed click OK to start the log When logging commences Verify QC menu options and the toolbar will update to include Pause and Stop buttons Rev No A3 Page 46 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Verify File Config Logging Action View Tools Window Help Depunoelsu c Qag vie H Pause Stop Logging Button 6 2 RINEX Verify QC software supports RINEX v2 10 standard and can log GPS data files in the RINEX format Logging intervals of 1 15 and 30 seconds are available File Config 4ction View Tools Window Help O W H ALF gt SPS 08 GLO CH F IO Edit Skart RINEX Logging menu RINEX logging must be ticked in Tools Advanced Options before RINEX logging can be used Use Logging RINEX Edit to bring up the RINEX Logger dialogue box The RINEX Logger dialogue appears RINEX Logger Station YERI Run By Observation Inte
86. er Manual Document No AB V MA 00584 4 FILE MENU The File commands File LD6 Default File Save and File Save As allow the user to create a new configuration file and save it or open configuration files for editing Notes The Verify QC configuration file should be saved and a backup copy created and stored in a safe area If a configuration is running and LD6 Default is selected a warning appears to save or cancel the existing configuration Creating a new configuration will close the existing configuration Config Logging Action LDG Default Save Save S Auto Start File Menu Structure 4 1 LD6 DEFAULT This menu option closes the current configuration and opens a default configuration This configuration will have the data inputs for installed modules preconfigured The user is required to configure all other applicable options within the software 4 2 VESSEL A vessel configuration can be saved at commissioning stage with options preconfigured such as External RTCM or data outputs The Vessel configuration file cannot be overwritten by the user if the option is selected the user will be prompted with a Save As dialogue to save the file under a different name For information regarding the setup and use of the Vessel option please contact the VERIPOS Helpdesk 4 3 AUTO START Selecting Auto Start ensures the last saved configuration file will re open automatically when Verify QC is started If you do
87. er has dual channels and is receiving both frequencies 3 The VERIPOS demodulator is enabled for the Apex Service 4 The Apex station ID is enabled on the demodulator output port 5 The Veripos check box is ticked in the Station Data dialog box The Apex GPS and GLONASS Apex calculation requires the following additions 5 The Verify QC dongle is enabled for Apex and Glonass 6 GNSS receiver is enabled for GPS and GLONASS has dual channels and is receiving both frequencies 7 The VERIPOS demodulator is enabled for the Apex Service 8 The Apex GPS station ID AND GLONASS station ID are enabled on the demodulator output port The Config Calculation Apex option allows users to select the PPP Mode and up to 4 backup solutions for when the Apex solution is not available The backup solutions can be selected from Ultra or the user defined Standard Standard or Standard GLONASS calculations see New DGNSS Calc section in this manual Rev No A3 Page 35 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The PPP Mode dictates which constellation is used in the Apex calculation This will be GPS Only or GPS and Glonass The PPP Mode is available if Apex and Glonass options are enabled on the dongle and Glonass is ticked in Advanced Options If Glonass is not enabled on the dongle or ticked
88. erify QC Main Menu Structure Functions are shown in icons on the task bar below the menu bar These help you to Create a New Configuration Save your Configuration Start logging data Start RINEX logging operates when enabled Disable GPS GLONASS satellites Switch to night time mode day time mode Increase font size Decrease font size Add notes to the configuration change log About Verify QC dialogue showing software version number O O O O EE EN E 3 2 DONGLE DEPENDANT FUNCTIONS An enabled dongle is required to operate Verify QC By default the dongle will support VERIPOS Standard calculations and associated functions A dongle can be enabled for additional software features Access to more advanced software functions is controlled by your dongle To confirm the functions enabled on your dongle its status can be viewed under Help Dongle View and in your selections under Tools Advanced Options This manual describes all the Verify QC functions and views Where functions described in this manual are optional and additional this is stated Rev No A3 Page 9 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 The dongle dependent Verify QC software functions are listed below O Ultra Apex GLONASS CSL Output Tides PPP Ref Axiom introduces the Ultra calculation and associ
89. escription 8 2 4 SV Health View SV Health displays the current health status of all the GPS and or GLONASS satellites in view 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy DU Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 63 Unhealthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 1 Healthy 0 Healthy 1 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy DU Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy 0 Healthy D Healthy 0 Healthy 0 Healthy 0 Health SV Health View Rev No A3 Page 59 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 GPS SV Health Identifies the GPS satellite PRN number Satellites enabled or disabled by the user in the current Verify QC software Enabled e configuration satellites tracked at the user location The number indicates the health flag oer the GPS ICD Shows satell
90. f a reference station or a high DOP value as shown below Calculation Status 1 April 2015 12 32 23T PDOP Apex GPS Ci Ei ERE Ci Eini E r eE Network of 5 L1 Dt GPS Stand Alone Uncorrected Calculation Status Warning 8 4 2 Position View Calculation Position first opens the Simple version of the position view This displays the calculation name the time UTC and the geographical coordinates No statistical parameters are shown Height is the height above the Geoid model selected by the user in Config Calculation Settings either EGM96 EGMO8 or a user defined Geoid separation E Position Ultra Latitude MG S54 57 12 04 06623 N Longitude NV 04 002 11 22 1428 VM Height AM oat 116 27 m Reduced Height EGM96 65 73 m 50 54 m Ultra GPS5 GLO Advanced Simple Position View Advanced bottom right opens the view showing calculation statistics Rev No A3 Page 71 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 bai Position Ultra 2 Ultra 12 43 19 UTC Latitude WG384 57 12 04 86570 N Longitude WWG3S84 002 11 32 16109 W PRN Station SD Resid ResidSD mde wotat wlest East North Up 0 137 Passed D 0 803 Passed 0 Height VW GS84 116 44 m Reduced Height EGM96 65 91 m Geoid Sep EGM96 50 54 m 0 571 Passed 1 051 Passed l 0 022
91. for analysis in order to determine the cause of any issues When an LD6 Is in QC Mode it retains the last 3 days 72 hours of logged data To archive LD6 data insert a USB memory stick into an available LD6 USB socket The screen below will appear E Drive Detected Archive Log Files Import file s Export Config Files Select Archive Log Files to commence archiving the raw logged data to the USB memory stick The screen will now show that the data is currently being archived and an option to cancel the operation will be available if required E Drive Detected Export Config Files Cancel action i NOTE Always perform a virus scan on the USB memory stick before inserting into the LD6 The data archive may take several minutes and is complete when the Eject all icon becomes available Before removing the USB memory stick from the LD6 ensure that Eject all is pressed This will then allow the USB memory stick to be safely removed Rev No A3 Page 110 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 13 INDEX OF APPENDICES A DEVICE IO DESCRIPTIONS A 1 SERIAL PORTS A 2 CLIENT SOCKET A3 SERVER SOCKET A 4 DATAGRAM A 5 FILE IO B QUALITY STANDARDS B 1 UKOOA STANDARD Di NMEA 0183 STANDARD C VERIFY QC OUTPUTS C 1 NMEA SENTENCES D TIDES LOGGING FILE FORMATS Rev No A3 Page 111 Date 09 09 2015
92. for each GPS and GLONASS satellite respectively reference station name standard deviation of the corrected pseudo range residual of the corrected pseudo range in the position computation standard deviation of the residual Marginally Detectable Error is the smallest error identified by the w test with a probability of 80 figure used in the w test w test is used to prove the null hypotheses by testing against a series of alternative hypothesis These are formulated to describe any possible error pattern or combination of error patterns If the error turns out to be Statistically significant for any of the alternative hypotheses the null hypotheses will be rejected in favour of the particular alternative if no alternative then the null hypothesis will be accepted If this w test matched the proposed error patterns with the error patterns found in the observation and if no match is found the null hypothesis is accepted component of external reliability on the measurement i e the effect an error the size of the mde would have on the East component of the position a component of external reliability on the measurement i e the effect an error the size of the mde would have on the North component of the position component of external reliability on the measurement i e the effect an error the size of the mde would have on the North component of the position Error Ellipse and Constellation View The error ellipse and its scale are disp
93. fy QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 1 2 External RTCM Inputs Additional external RTCM inputs can be interfaced to Verify QC and configured via Serial Port Client Socket and Datagram serial Port Client Socket and Datagram connection details are detailed in the Appendix To add an RTCM input click Config RTCM Input New File Logging Action View Tools Window Help Dn GNSS Receiver B GLO Le R o RT_M Input Neu H Demodulator Input Calculation V Position Output V Veripoos LBR 1 Service ATCM oF RTCM Input This will open the following dialogue RTCH Input Name Station Data w Weripos Secondary via NTRIF Mode User Contigurable 4 Bean AORE wl stations Aberdeen 777 Wick 701 Netherlands 702 Bodo 703 Kristiansund F04 Additional stations Edit Input 7 Device ient Socket S IP Address localhost Port 8000 cnet RTCM Input dialogue Rev No A3 Page 18 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 1 3 RICM Name If using more than one RT CM Data link it is good working practice to allocate a more descriptive Name to each link This allows each link to be easily identified by the operator The use of a descri
94. he Vessel Direction This allows vessel specific masking areas to be identified by the user Calculated heading is less accurate when the vessel has a very low velocity The correction for vessel heading takes place only when the vessel velocity exceeds 3km hr Switching the view to Correct for Heading may reduce the number of points on the constellation plot The plot will display missing satellite data for the last 24 hours Clear the buffer by right clicking on the view and select this option Rev No A3 Page 62 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Rev No Date Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 8 3 DIFFERENTIAL The Differential menu contains all views relating to correction data 8 3 1 Latency File Config Logging Action We Tools Window Help RQZ soe GNSS Differential Latency Calculation Ultra Latency OC d Polar Plot Logging Station Map Ultra Corrections Type 16 Messages Demodulator Status View Differential Menu The View Differential Latency view displays information about the age of the correction data for all stations and services with RTCM inputs A3 09 09 2015 Latency 1630 Wednesday 10 50 50 GH GFS GLONASS Ultra Al Hz e B Enz ze Apex GLONASS D C1 Aberdeen C2 Wick Al 16 4
95. hem or in the address mode where the data packets have headers specifying the addressees of the intended recipient There is no guarantee with this protocol that the messages will arrive in the order they were sent The Datagram ports available in Verify QC when running on an LD6 are restricted to ports 19201 to 19206 IP Address Max Size Datagram Options Rev No A3 Page 117 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 As with Server and Clients Sockets the user is required to enter a Port number The Datagram communication type can be used to send or receive data To broadcast data tick the Is Broadcast box To receive data leave this box unchecked The P Address configuration defaults to local host with a Max Size of 512 limiting the packet size to 512kb These two parameters are user selectable Select IO Device Datagram Port IP Address and Max Size Output IO Device patagram sl Port 19202 Is Broadcast IP Address localhost Max Size 51 Datagram Configured Rev No A3 Page 118 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 B QUALITY STANDARDS B 1 Rev No Date A number of standards offer marine satellite navigation system users DGNSS DGPS DGPS
96. ighting of Height value will increase See relevant sections in this manual The Height SD value entered should represent the total uncertainty of e the accuracy of the GPS antenna height measurement e the expected fluctuations in antenna height due to vessel movements caused by swell e changes in draft and tides e the accuracy of the Geoid model Note Height Aiding does not fix the height Note height aiding should not be used in land locked waterways the Geoid and Mean Sea Levels do not coincide Height aiding is not applied to the Apex and Ultra calculations 5 4 1 2 Fallback Smoothing The Fallback Smoothing option is enabled by default When enabled this smooth s the transition between the Apex Ultra solutions and their fallback oackup solutions This is accomplished by breaking down the distance between solutions and transitioning from the previous solution to the active solution in smaller increments over time the solution position doesn t immediately jump When the Fallback Smoothing option is unchecked the transition will not be smoothed therefore will immediately switch between the previous and active solutions as soon as they become active and a position jump will be observed between calculations The Fallback Smoothing option is primarily for use with the VERIPOS AXIOM application where Fallback Smoothing should be disabled Rev No A3 Page 28 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos
97. in Advanced Options the Apex calculation will be GPS Only Elevation blask 7 SRE CHILE Ses p Backup Backup Two No Backup z Backup Tree No Backup Backup Four No Backup PPP Mode e GPS Only GPS and GLONASS een Apex dialogue The logic of the backup process is as follows 1 An Apex solution will be output if the calculation is in Apex mode and has a minimum of 5 satellites reported in the Calculation Status view 2 Alternatively the Backup One solution will be output provided its mode is Differential or Reduced Differential 3 Alternatively the Backup Two solution or the Backup Three solution or the Backup Four solution will be output provided its mode is Differential or Reduced Differential 4 Alternatively an uncorrected solution will be output N B Steps 2 and 3 are omitted from the process if no backup solutions have been selected A smoothing process is used during switches between the different stages of the backup process allowing Verify QC to seamlessly fall back without steps or interrupting in the Apex position output The smoothing process removes the initial difference between the previous and current calculation stage over a 100sec time period Rev No A3 Page 36 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4
98. in advanced views or software options using 7ools Advanced Options Advanced Options Options vw GLONASS PPP Ref Calculation vw Tides RINEX Logging CSL Output vw Always show on start up Advanced Options dialogue The Advanced Options dialogue also appears on start up of the software Enabling disabling views or options affects the functionality and views accessible through the Verify QC menu structure The Advanced Views appear deselected by default If views are enabled their enable status is stored in the configuration file such that the same view will be available when the user re opens the configuration file The Options currently supported by the dongle are all selected by default in a new configuration Several additional options can be selected Options not supported by the dongle are greyed out For options selected or deselected the selection status is stored in the configuration file such that the option is set correctly when the configuration file is re opened The manual covers all option dependent functionality and views by describing the full menu structure If certain functionality or views are absent the user is advised to check the dongle enable status under Help Dongle View and the selections under Tools Advanced Options Rev No A3 Page 100 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Docum
99. ing options under Show The Display Mode of the event log can be changed The live mode can be paused or set to display a past event log file Show kt sort By d Been auoe ARa a Live Event Log View Display Mode Options The user can view the events of previous days by right clicking on the view menu and selecting Display Mode File The full list of event files associated with the current configuration are shown and are available for selection Select File Event Log View Select File Rev No A3 Page 95 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Whilst the event log is in File mode it is possible to browse through the event files using the Next and Prev commands or to select the file for a specific date via the Select sub menu Show b Sort By Display Mode Next Prev Event Log View File Mode The view options outlined above are available also by right clicking on the header bar of the view 8 6 2 Config Change Log All configuration changes are stored in an XML file with the same name and kept in the same location as the configuration file This log of configuration changes is displayed also in Verify QC in the Config Change log View The view contains a record of the date and time of the change a title and a description of the cha
100. ion An indication of the overall fit of the observations to the statistical model The F Test F Test does not detect the source of any errors but gives an indication as to the pass or failure status of the test The ratio between actual and modelled errors Values range around 1 Unit Var Spikes in the unit variance indicates outliers and erroneous pseudo range measuremenis 95 semi major axis of the error ellipse shown in the Track Plot view Sins Number of reference stations for which corrections are ee ne ee an eee ee nee used in the ee ne ee an eee ee nee Number of satellites used in the calculation Combined GPS and GLONASS SVs calculations follows the syntax x y with x being the number of GPS Mode satellites and y being the number of GLONASS satellites Positional Dilution of Precision indicates the strength of the geometry for PDOP determining a 3D position estimate and a basic accuracy indicator Rev No A3 Page 70 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 If Verify QC detects a problem in a position calculation the name of the calculation in the Calculation Status view changes colour A yellow background indicates a warning about possible position quality degradation whilst red text indicates a calculation failure Other possible causes of the name field changing to yellow will be the loss o
101. ion Status Data Current mode of the calculation This is the prime indicator of the current calculation status Possible modes are As Received indicates the position as generated by the external GPS receiver No Position No Solution Uncorrected no differential correction has been applied L1 Solution using single frequency measurements L1 L2 Solution using Dual frequency measurements Diff differential corrections have been applied for all stations Reduced differential corrections have been applied for some stations GPS Solution using GPS Constellation only GPS GLO Solution using GPS and GLONASS Constellations Uncorrected Settling Ultra initialisation fixes Ultra DGPS Settling initial Ultra orbit amp clock corrected fixes Ultra Settling Ultra converging Ultra Ultra converged Apex DGPS Settling initial Apex orbit amp clock corrected fixes Apex Settling Apex converging Apex Apex converged BU 1 Backup One calculation mode BU 2 Backup Two calculation mode Reduced Diff data from some stations is not received gt BU1 or BU2 indicate the Ultra or Apex calculation is currently unavailable and that the Backup One or Backup Two calculation is being output The indicates that backup smoothing is active The backup smoothing is used in the transition from Ultra or Apex to BU1 or BU 1 to BU 2 and vice versa to ensure a seamless transition avoiding a step in the posit
102. ite health status based on the ephemeris data This is the Aimanac secondary source of satellite health status Information is available for all Shows the satellite health status based on ephemeris data This is the Ephemeris primary source of satellite health status The information is available only for satellites in the constellation The number indicates the health flag per GPS ICD GLONASS SV Health Identifies the GLONASS satellite slot number Satellites enabled or disabled by the user in the current Verify QC software Enabled configuration Gives satellite health status based on ephemeris data This is the primary source of satellite health status The information is available only for satellites tracked at the user location The number indicates the health flag as per the GLONASS ICD As for GPS satellites Ephemeris The individual GPS and GLONASS sections can be displayed or hidden by ticking the system name Copy l vw GLONASS SV Health View Options Unhealthy satellites transmit a warning flag uploaded by satellite ground control during maintenance operations Verify QC uses this flag to temporarily prevent the data from these satellites from being used in position calculations Disabled satellites have been manually flagged by the user for exclusion from the position calculations This option covers a scenario in which a satellite goes rogue and transmits bad data without being flagged unhealthy G
103. ket IP Address localhost Port 6000 Client Socket Options The Client Socket dialogue allows users to enter the P Address of the device serving out the data and the Port on which the TCP IP data is present If the data is coming from the same computer as Verify QC the IP address should be left as localhost Ports range is between 0 65535 A 3 SERVER SOCKET Position output data can be sent to other applications on the network using Server Sockets with the TCP IP protocol Rev No A3 Page 116 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The Server Socket ports available in Verify QC when running on an LD6 are restricted to ports 19201 to 19206 Qutput IO Device server Socket e Port None Server Socket Options Select IO Device Server Socket and then select desired Port Output lO Device carver Socket Port 41927208 IsGroup Server Socket Configured The Server Socket dialogue allows users to enter the Port on which the TCP IP data will be present A 4 DATAGRAM The Datagram connection type in Verify QC uses the User Datagram Protocol UDP UDP is an alternative to TCP It does not manage a connection for purposes of flow control Instead packets of data are issued to the intranet internet in either broadcast mode where any networked computer on the LAN can receive t
104. layed with the constellation of the GPS and GLONASS satellites GPS satellites are white circles GLONASS satellites are white squares A3 09 09 2015 Page 75 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Position View Error Ellipse and Constellation View 8 4 3 Tides View Calculation Tides opens the Tides table and a time series view The view options are accessible via right click Time Scale Hide Table Hide Graph vw Average Height Geoid Tide MSS Tide Hourly Height Hourly Tide Moo Reference Draft Change Vertical Bias User Entered 4ntenna Size to Content Tides View Menu Options The user can choose from nine time series Antenna Height A time series plotting the minimum maximum and mean height of the GPS antenna relative to the user selected Geoid model Points are added at the user selected interval Geoid Tide A time series plotting the minimum maximum and mean height of the vessel waterline relative to the user selected Geoid model Points are added at the user selected interval MSS Tide Time series plotting the minimum maximum and mean height of the vessel waterline relative to the Tide filter estimate of Mean Sea Surface Values displayed are called the Ultra Tide Points are added at the user selected interval Hourly Height Time series plotting the minimum maximum and mean height of the GP
105. le PO 1741590150906006W570743144N0020445062E0256M 30100071 75008005021001P010022006060906071013162123253000364777701 70270500 0000000000000A6 VERIPOS UKOOA 2 sentence defined emen remm poa umt comments NO Sa Message DepencentByie wus Message DepencentByie 1 us Deen e Ins ml Daum macar n 1 a o seon Lack sn a ooms Oooo Lattude Hemisphere un Is o os tonns mo aas gn Longitude Hemisphere n In Iren KE E a XIS 95 68 Error Ellipse Semi minor Axis O1 amp 95 68 Error Ellipse Max Direction 95 68 Latitude s d Precision Value at aa RE T een 5 LOP with External Reliability See comment 11 Number of SV s used at the Mobile NN N vn fe Satellite PRN Numbers 12 n Rev No A3 Page 138 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual ane 68 Height s d Precision EEC 66 68 ME DO sl emmem Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Approximately N x V Total Number of SV s used in Solution 12 NN for multi reference solution U of the Reference Station VE ree Optional Additional Data Before 10 or I1 n vanene Checksum Checksum Carriage Return Line Feed Comments 1 Age of Data the time of the first character of the data string being output minus the time of position 2 Datum Indicator this indicates which Datum is being used by the calculation W WGS 84 Z Other Datum
106. le d STD Re Centre STD Copy PPP REF Size to Content Po Error Ellipses View Reference Position The Reference Position can be set to any of the position calculations or the Trial Point Conftig Calculation Settings if the system is stationary The selected solution is shown in the index in bold print Hide Tracks allows the user to remove the track plots for all the calculations in the Error Ellipse display Hide Table allows the user to hide the key completely Reference Position F Hide Tracks Hide Table Position Mode bsolute Scale k y Relative Re CLentre Copy Size to Content Error Ellipses View Position Mode The Position Mode can be set to Relative or Absolute e Relative Displays the position calculations relative to the Reference Position This can be fixed i e Trial Point or moving i e a Position Calculation The chosen Reference Position remains in the centre of the screen with the other positions shown relative to it e Absolute Displays all Position Calculations in their actual positions In a moving environment none of the positions will be centred and will all move around the screen For a known reference position the differences are shown for each position A3 Page 83 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Rev No Date
107. les will be stored using Browse A3 Page 51 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 7 2 2 Archive Logged Tide information can be archived whilst the Tide calculation is active Archiving the tide log files will not automatically reset the process The Archive function will copy the Tides logging files to a designated directory Files may be split using the drop down box between daily weekly or monthly Note that the Monthly option covers a 31 day period To delete an existing Tides logging file select the Delete files after archiving tick box Please be aware that deleting files after archive will reset the tides calculation therefore do not delete the tides files if you require the tides calculation to continue To Archive Tides data from the LD6 for Post Processing click Action MSS Tides Archive The following window will appear Archive Tide Logging Data File Splitting None Delete files after archiving SN Tides Archive Select Archive button The data can be copied the following folder on the LD6 Archive DateandTimestamp Tides The file naming conventions for logged archived data will vary dependant on the file splitting option which is selected None Tidelnfo txt Daily Tidelnfo YYMMDD txt Weekly Tidelnfo GRPSWWWW ixt WWWW is the GPS week number
108. ll down menus to the right of the screen Right click on the view and select Show Controls Hide Controls A graph for a calculation can be highlighted by clicking on the calculation name in the Position selection box The Position selection box can be hidden or shown Use the icon to expand the display When the box is open the user can select the calculations required for plotting select the square boxes and selecting the calculation or Trial point to be used as the reference position tick the round box Moving the pointer over a particular time series or scatter plot changes the cursor to a Zoom magnifying icon and a box can be dragged over a selected area right mouse button to start the area to be reviewed This pauses the view adds a magnified graph of the selected area at the bottom of the screen and a small full graph at the top of the screen A3 Page 86 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Time Series Apex Zoomed Delta East Paused Position Difference UKOOA Statistics Scatter Delta East Ultra Apex STD STD2 Network of 5 Stand Alone PPP REF Trial Point 1 jel ceie lt i lt l ike fie tke EE ie a 13 05 Delta East Time Series View Zoom Zoom in as many times as required Icon functions Pauses the live update view to review a previous period Pl
109. lt 127 gt CE INpw O lt 127 gt 0 Lo Wome x Dooie Ba oe zolDC WIG OQeg lt 1 27 gt grye y qo s Gphl Chi oBxx iets m506 1 0 17 0 58 36 0 View IO View Verify QC requires the RTCM Type 3 and when using GLONASS stations the RTCM Type 32 to determine the reference station location Where not present the station data will be rejected by Verify QC In order to use reference stations that do not provide Type 3 and or Type 32 message but are at a short range the user needs to tick the box Local Station Verify QC will then assume that this station is at the users location not apply any differential tropospheric and ionospheric models and subsequently use this correction data The GPS to GLONASS datum shift used by the reference station receiver is normally detected automatically from the Type 3 and Type 32 messages Users of non VERIPOS stations need to select the datum shift between the GPS and GLONASS reference frames for the non VERIPOS stations Rev No A3 Page 24 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Options available are Standard shift Topcon Javad default RTCM shift RTCM v2 3 NovAtel shift NovAtel default Zero Shift These shifts have the following predefined Helmert parameters Shit om av m dZ m rX rad eY rad Z rad Scale Standard 00 00 10 00
110. nces in use when running Verify QC on the LD6 1 LD6 must be fitted upgraded to 2Gb RAM 2 No Advanced Views are available 3 In Verify QC the GNSS Receiver and RTCM input configuration options are preconfigured for the Client Sockets used within the LD6 A maximum of eight on screen windows views are available The menu will grey out once eight screens are open COM port mapping in Tools is not available There is no facility to import a new map configuration file The Verify QC manual is not viewable as a pdf on screen Verify QC configurations from a PC are not compatible RS232 422 ports 9 14 are dedicated to Verify QC use The port default baud rate for these ports is 9600 bps all are user configurable 10 There are 6 pre assigned server socket ports when using the LAN connection 19201 to 19206 11 Archive of Verify QC data facility has been removed Refer to LD6 Operations manual for archiving procedure which when in QC mode archives all the relevant troubleshooting data files 12 When in QC mode the LD6 internal calculations are not available to be applied all calculations are carried out within QC 13 Switching between LD6 DP and QC modes the QC mode configuration files will be retained The assigned output ports will be retained 14 LD6 Factory Reset deletes all QC mode data and will revert the system to LD6 mode JS LO CO NO Ol For further information visit the VERIPOS Online Support Sys
111. nge Further details of the change can be displayed by clicking on the symbol at the start of the specific change entry Similarly the details can be collapsed File Config Logging Action View Tools Window Help 53 x Da ee CRAI Date Time Title Description H 1 April 2015 13 14 21 Configuration Change Calculation Removed Calc E 1 April 2015 13 14 01 Configuration Change Calculation Removed Calc Name Mode Yeripos Standard ClosestCalc Closest Calc Control Height Aid false 1 April 2015 12 47 26 Configuration Change Calculation PPP Ref 1 April 2015 12 46 33 Configuration Change Calculation Added Calc 1 April 2015 12 32 23 Configuration Change Calculation Ultra PPP Mode changed from GPS Only to GPS and GLONASS 1 April 2015 123216 Configuration Change Calculation Ultra 1 April 2015 12 30 17 Configuration Change Calculation Tides 1 April 2015 10 56 46 Configuration Change Calculation 1 April 2015 10 56 45 Configuration Change RTCM Input 1 April 2015 10 19 24 Configuration Change Calculation Added Calc H 1 April 2015 10 19 10 Configuration Change RTCM Input Added RTCM Input 1 April 2015 10 15 16 Configuration Change Calculation H 1 April 2015 10 15 02 Configuration Change Calculation 1 April 2015 10 15 02 Configuration Change RTCM Input Station Data 1 April 2015 10 13 28 Configuration
112. ngle 250 Days Remaining 09 00 49 Verify QC Example Screen Verify QC can receive and output data using serial TCP IP communications and data files lt operates in real time whilst retaining full functionality in post processing mode Rev No A3 Page 4 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 The Verify QC software is dongle protected An enabled dongle will need to be attached when running Verify QC before the software can be used Verify QC will not run without an enabled dongle being attached Principal features of Verify QC are Intuitive use simple to operate and use User configurable Supports a range of GNSS receivers Supports all VERIPOS data broadcast services Accepts corrections from 3 party non VERIPOS sources e g IALA Capable of multi reference station and single station GPS only GLONASS only and GPS GLONASS calculations Capable of use of high accuracy Precise Point Positioning PPP calculations Capable of real time tidal calculations Provides statistical analysis and QC information Compliant with UKOOA recommendations High number of position calculations Raw and computed data can be logged for analysis and replay Output of position solutions and associated QC information Supports TCP IP communication 1 1 DIFFERENCES WHEN USING VERIFY QC ON THE LD6 The following lists the key differe
113. ngs Data Protocol Selection Click Next select the Baud Data Parity and Stop Bits and then select Finish 0 10 4 Select COM Settings Baud D P S 9600 8 n 1 Cancel LD6 COM Port Parity Settings Data Protocol Selection A window will appear to confirm the correct settings if the settings are correct click Yes Verify QC Configuration In Verify QC IO Device section the user should set the Type to LD6 Port Output lO Device LDS Port rt SS VQC Output LD6 Port In the Port list there are predefined ports 9 to 14 Rev No A3 Page 115 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Output lO Device LD Port r LDS Pid LDS F11 LDS Pi T VQC LD6 COM Ports The user should then select the desired Port Output IO Device LDS Port K Port LDS P9 VQC LD6 COM Port A Com port already in use by Verify QC or another application on the PC will be greyed out in the Port pull down menu The Baud rate must match the settings of the device connected to Verify or the setting required for the output string Data Bits Parity and Stop Bits can be changed if the interfaced device does not use the 8 NONE 1 protocol A 2 CLIENT SOCKET RTCM and Demodulator Status data can be received from other applications on the network using Client Sockets with the TCP IP protocol Chent Soc
114. not require to use the last saved configuration when Verify QC starts you can close this configuration create a new configuration file or open a previously saved file 4 4 PREVIOUS VERIFY QC CONFIGURATION FILES Verify QC configurations that have previously been saved on the LD6 can be loaded from the file menu This is done by selecting the configuration file name under the Auto Start option in the file menu Rev No A3 Page 12 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Previous configuration files will be displayed in the File menu underneath Auto Start Config Logging Action View Tools Window Help LO6 Default a GLO CC Save Save 4s Dubo Zkart 1 Test YOC 1 12 Available saved VQC Configs Click on the desired configuration A prompt to save the current configuration will appear Please Contirm LY Configuration has changed do you want ta save before closing Yes No Cancel Save Current Configuration Prompt 4 5 COPYING VERIFY QC CONFIGURATION FILES FROM USB MEMORY STICK To copy a Verify QC configuration onto the LD6 the config files need to be stored in a folder with the same name as the config in the following directory on the memory stick S el Removable Disk Ei LDGIrmportExport VOC Config File Edit View Tools Help LD6ImportExport VQC Config
115. nt 4 varane paan rea Deal mi Iessen Fasas e mema ss ae No of Ref Stations r 118 No of ref stations used for this fix See Comment 8 a a Ia oC e Satelites used forthisfix O O dents ore sations a r Variable Reference stations usea fortis ix Eracar at ae sng OOOO Ee OO S Rev No A3 Page 130 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 Comments 1 8 Rev No A3 Date 09 09 2015 The Nav point no is a unique integer identifying the position It should be input manually to the software according to requests from Navigations System operators Alternatively it should start from 1 and be incremented if several positions are output from the same system The system name should identify the system or contractor and software The Age of fix is the time of the first character of the data string being output to WesternGeco s positioning system minus the time of position WGS84 ellipsoid and datum must be used The height must be antenna height above the WGS84 ellipsoid The Variance and Covariance terms are elements from the variance covariance matrix of the position fix computation un scaled The External Reliability is the maximum positional effect of an undetectable error in an observation This quantity is related to the Power of the test probability that the MDE would be detecte
116. oard LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 This table displays the following information Conidence reliability of the position indicating that 99 of the positions are contained within the error ellipse measures the tests ability to reject the null hypothesis when it is actually false indication of the overall fit of the observations to the statistical model The F F Test Test does not detect the source of any errors it will give only an indication as to the pass or failure of the test number of additional observations compared to the unknown quantities that Deg Of F are being solved for When the number of observations equals the number of reedom See ge unknowns there is no redundant information in the position calculation the ratio between the actual and modelled errors The expected value of unit Unit Var variance is 1 Occasional small values are of no concern however large values can indicate a bias in the data Spikes in the unit variance indicate outliers and erroneous pseudo range measurements Root Mean Square is a statistical measure of the scatter of computed RMS i ei A SC positions around a Best Fit position solution This is shown in meters Semi Major axis of the error ellipse produced by the calculation Semi Minor axis of the error ellipse produced by the calculation direction of the Semi major axis from the centre of the error
117. oard LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 VERIPOS UKOOA Sentence Example 239 1 06Verify 1 1392 491778 0 0 4 5 4 57 07 719007N 002 04 750811W 25 781 450 28 1 389 0 775 1 1523 19 258 0 781 0 13 1 398 0 125 0 656 1 635 1 75 0 81 004 3 P 10 01 02 05 06 07 16 21 23 25 30 4 0777 0701 0702 0705 VERIPOS UKOOA sentence defined Genen Format A5 A6 E I5 Open string Number of characters oo OO e Add mm mmmmm_ space Software Version Ap Record Identifier Po GPS Week Number mp o 2 6 1 11 6 17 1 3 19 29 GPS Time of Fix F9 1 24 32 Nors Add mm mmmmm_ space e Antenna height above mean sea level See comment 3 Latitude Hemisphere Indicator N or S Pa fw Longitude F13 6 58 71 Longitude Hemisphere At Indicator E or W Altitude above MSL 80 87 GecidSeparaion ms as TT SS SS Latitude F13 6 44 56 7 ae 10 1 18 Fasas e onmo 12 95 Error Ellipse Semi D 160 165 Major Axis 1 2 F6 95 Error Ellipse Semi F6 166 6 Minor Axis Ze Orientation Of Semi F 172 177 See comment 10 Major Axis of Error F Test P Pass A2 178 179 See comment 11 F Fail Rev No A3 Page 135 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 No of Satellites
118. ode indicator o VTG Old conforms to previous NMEA standards and does not include the mode indicator NMEA GSA Sentence The NMEA GSA sentence contains the GNSS DOP and satellites used in the solution If only GPS SVs are used in the calculation the talker ID will be GP If only Glonass SVs are used in the calculation the Talker ID will be GL If the GPS and Glonass SVs are used ina combined solution the talker ID will be GN and multiple GSA sentences are produced Structure and Example GSA a N XX XX XX XX XX XX XX XX XX XX XX XX Pp p hh h vv v c lt CR gt lt LF gt GNGSA A 3 02 04 05 07 08 10 13 16 23 29 1 1 0 6 0 9 21 GNGSA A 3 68 69 70 78 79 80 85 86 1 1 0 6 0 9 2F GSA sentence defined GSA GNSS DOP and Active Satellites a Mode M Manual forced to operate in 2D or 3D mode A Automatic allowed to automatically switch 2D 3D n Mode 1 Fix not available 2 2D 3 3D xx X12 ID numbers of satellites used in solution up to the first 12 ID s pp p PDOP hh h HDOP V VV VDOP c lt CR gt lt LF gt checksum carriage return and line feed A3 Page 127 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 NMEA GSV Sentence Rev No Date GNSS Satellites In View Number of satellites SV in view satellite ID numbers elevation azimuth and SNR value Four satellites maximum per transmission Total n
119. of6 11 8 1 164 z D d o o o por DOP GPS Healthy T GDOP 1 443 GLONASS Healthy 29 A PDOP 1 130 Unhealthy 05 ELE HDOP 0 610 EEN VDOP 0 951 ee Mask 10 00 10 00 11 00 12 00 13 00 14 00 i E O C3 Tananger O CA Netherlands 3 7s O C5 Falmouth 23 4s C6 Kristiansund __ 24 1s OC Bodo 25 3s O C8 Bologna C9 Hammerfest O C10 Vardo OLA GNSS Rx ervice DEER EELER lt 127 leyo AROI lt nX vi oxo Ch IG L Position dEast dNorth dHeight gt lt 2 gt lt 1 gt lt 132 gt lt 17 gt lt 15 gt TA lt 209 gt lt 28 gt AB lt 229 gt lt 0 gt lt 24 HOxi C lt 127 gt yKn DFE GENEE ERT gt I GNSS Rx 0 30 0 35 4 60 gt lt 187 gt lt 202 gt 0 lt 132 gt 3 lt 149 gt lt 149 gt lt 186 gt lt 249 gt lt 2 gt lt 14 z lt 127 gt _Mhum lt 127 gt ydGCxdG hE m Aw lt 127 gt Ultra 0 04 0 21 0 17 gt lt 208 gt 7k lt 8 gt lt 252 gt lt 207 gt u lt 180 gt lt 162 gt lt 191 gt lt 0 gt lt 0 hjj z x Apex Ref Ref Ref gt lt 21 gt lt 0 gt lt 255 gt lt 255 gt lt 255 gt lt 255 gt lt 5 gt lt tab gt lt 0 gt lt 0 gt lt 5 gt en 13190 01 00 0 gt STD 0 02 0 35 0 06 lt 0 gt lt 0 gt lt 0 gt AOar lt 127 gt Z ddxJXCQ bhtChuc oct X SID 0 03 0 41 0 85 Septentrio Cartesian Position 4006 80 801 344000 49 8 Do
120. ontig Name E Doodson_150527 SPRINT_Tides_150527 Tidelnfo_150527 gt History Tides Archive a CH 2015 05 27T 15 34 21 gt Tides This can be copied to a USB drive Rev No A3 Page 108 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 12 3 REMOVAL OF USB MEMORY STICK To remove the USB memory stick use the Eject All button on the LD6 that appears when any USB memory stick is inserted into the LD6 This will safely dismount USB sticks E Drive Detected Archive Log Files Import file s Run File Manager Export Config Files USB Splash Screen Rev No A3 Page 109 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 12 4 ARCHIVE DATA In the event of any receiver issues such as loss of solution it is possible to archive the raw GNSS and RTCM data in a VERIPOS proprietary format These files can then be sent to VERIPOS for analysis in order to determine the cause of any issues Note that in Verify QC on the LD6 there is no option to Archive data within Verify QC only on the LD6 itself In the event of any receiver issues such as loss of solution it is possible to archive the raw GNSS and RTCM data in a VERIPOS proprietary format These files can then be sent to VERIPOS
121. options after right clicking on the view w Display LZ Display GLONASS w Display PRNs w Display Polar Plot w Narrow Display Wide Display Overall Status View Options Mouse clicking on each coloured box will open the relevant view with additional information Clicking on the receiver input RTCM input and position output boxes will open the IO View Clicking on the corrections area will open the Differential Data view for that particular station Clicking on the calculation area will open the Position view for that particular calculation It is also possible to open the Almanac GPS amp GLONASS Ephemeris GPS amp GLONASS Measurements Latency and Station Map by clicking on the relevant areas A3 09 09 2015 Rev No Date Page 90 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 5 4 Calculation History The calculation history displays a history of the main events against a time scale The top bar provides a general overview of event happenings and the time period The black box acts as a viewfinder and can be moved along the time axis Depending on the overall time scale an area of 5 30 or 60 minutes is magnified in the bottom bar The left hand column describes the event whilst the right hand column shows the time span History STD 1 Hour Typel IODE Mismatch Using Old Correction Typel IODE Mismatch Using
122. or which all information in the string is valid Identifies time in UTC or GPS for which all information in the string is valid 3 Sequence Number numerical Sequential number incrementing by 1 for every extra string Maximum is 99999999 after which an automatic reset back to 1 takes place Time UTC or GPS hhmmss ss or SSSSSSSSS 4 Averaging Period numerical User selected period over which VERIPOS Apex or Ultra heights are averaged in seconds Minimum is 60 maximum is 3600 Sample Count numerical Number of VERIPOS Apex or Ultra height samples that were included to derive the antenna height average Minimum is 50 of Averaging Period maximum is Averaging Period Latitude ddmm mmmm Location where height and tide information is valid degrees minutes and decimal minutes Rev No A3 Page 143 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Rev No Date Longitude dddmm mmmm Location where height and tide l information is valid degrees minutes and decimal minutes 10 Mean Height hh hh metres Mean of the VERIPOS Apex or Ultra heights during the Averaging Period Mean of Height SD hh hh metres Mean of the Height SD s associated with the VERIPOS Apex or Ultra heights during the Averaging Period This is an indication of the quality of the VERIPOS Apex or Ul
123. or even 5 digits after the decimal point Programs reading the data should only use the commas to determine the field boundaries and not depend on column positions There is a provision for a checksum at the end of each sentence which may or may not be checked by the unit reading the data The checksum field consists of a and two hex digits representing the exclusive OR of all characters between but not including the and A checksum is required on some sentences There have been several changes to the standard but for GPS use the only ones that are likely to be encountered are 1 5 and 2 0 through 2 3 Version 2 3 added a mode indicator to several sentences used to indicate the kind of fix the receiver currently has The value can be A autonomous D differential E Estimated N not valid S Simulator Sometimes there can be a null value as well Only the A and D values correspond to an active and reliable sentence This mode character has been added to the RMC RMB VTG and GLL sentences and optionally some others including the BWC and XTE sentences The hardware interface for GPS receivers is designed to meet the NMEA requirements They are compatible also with most computer serial ports using RS232 protocols however strictly speaking the NMEA standard is not RS232 They recommend conformance to EIA 422 The interface speed generally can be adjusted but the NMEA standard is 4800 baud with 8 bits of data no parity and one stop bit All GPS re
124. ormat or Units 1 Latitude ddmm mmmmmm m Latitude Hemisphere UTC of position Latitude of position N or S latitude hemisphere dddmm mmmmmm Longitude of position m Longitude E or W longitude hemisphere Hemisphere 5 Differential indicator Precise indicator 0 false 1 true 7 HDOP hh h HDOP max 99 9 PDOP PDOP max 99 9 VDOP VV V VDOP max 99 9 Height h hh Antenna altitude above mean sea level Differential indicator 0 false 1 true II Geoid Height Geoidal height Age of Age of differential GPS data correction 13 Course over CC C ground 14 Speed over SS S ground 15 RMS rrr RMS value of the standard deviation of the range inputs to the navigation process Range inputs include pseudo ranges and differential DGNSS corrections Semi major SD Standard deviation of semi major axis meters A3 Page 141 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Standard deviation of semi minor axis meters 18 Orientation of semi major axis of error ellipse orientation degrees 19 X XX Standard deviation of latitude error meters Standard deviation of longitude error meters 21 Standard deviation of altitude error meters 22 Reference nnnn Differential reference station composite ID 0000 Station ID to 1023 23 No of GPS Svs gp Number of GPS satellites in use 24 GPS IDs XX
125. oting To check that communications are established 1 open the IO view from the main menu View IO 2 check the GNSS data is correct a successfully decoded data appears as green text within the IO view b scrolling text is shown in red where data cannot be decoded c no text appears is no data is received Rev No A3 Page 16 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 CONFIGURE RTCM INPUT 5 2 1 Configure RTCM Input 5 2 1 1 Preconfigured RTCM Inputs RTCM Inputs are created automatically for installed RTCM Modules within the LD6 i e LBR1 RTCMa MF and UHF Certain options such as Device O are preconfigured for these inputs and cannot be changed by the user The user is required to configure options such as Mode Beam and Stations if applicable To configure these RTCM inputs click Config RTCM Input RTCM Name Eait File Logging Action View Tools Window Help D GNSS Receiver TI GLO C OI OH RTM Input b eat Demodulator Input l l veripos LBR 1 Service ATEM F Calculation V Position Qukput d RTCM Input This will open the following dialogue RTCH Input Mame Veripos LERI Service RTCMa Station Data iw Weripos Secondary via NTRIP Mode Closest 10 Stations Client Socket ees RTCM Input dialogue Page 17 Rev No A3 Date 09 09 2015 Veri
126. oximate position as a trial point will speed up the calculation process Alternatively Receiver Position can be used and the trial point will be based on the uncorrected position as output by the GNSS receiver It is necessary to enter the user s location when referencing the calculated positions to the Trial Point in the Track Plot and Time Series windows This is of help when comparing a Static point to the computed positions within Verify QC Rev No A3 Page 27 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 1 1 Height This measurement is the height of the GNSS antenna phase centre above the waterline of the vessel The height information is used for Geoid Tides and height aided DGNSS calculations The antenna height is used in Tides to reduce the antenna location to the waterline before calculating the GeoidTide values only Hence changes to this parameter will have an immediate effect on the estimated GeoidTide values but will not influence the estimation of the MSSTide values Height aiding can be used to add an extra observation to the position calculation in order to provide additional cover for periods when the GPS constellation is weak or insufficient to calculate a position Height and Height SD values are used when Height Aiding is selected during calculation setup lf the Height SD value is reduced the we
127. pe31 Outlier 2 36 detected on Slot 17 RTCM Type31 Outlier 2 46 detected on Slot 5 RTCM Type31 Outlier 2 06 detected on Slot 14 RTCM Type31 Outlier 2 01 detected on Slot 24 RTCM Type31 Outlier 2 41 detected on Slot 17 RTCM Type31 Outlier 3 98 detected on Slot 17 RTCM Type31 Outlier 4 48 detected on Slot 17 RTCM Type31 Outlier 2 42 detected on Slot 23 RTCM Type31 Outlier 2 05 detected on Slot 14 RTCM Type31 Outlier 2 30 detected on Slot 24 RTCM Type31 Outlier 2 57 detected on Slot 23 RTCM Type31 Outlier 2 13 detected on Slot 17 RTCM Type31 Outlier 2 20 detected on Slot 14 RTCM Type1 Outlier 2 47 detected on PRN 30 RTCM Typet Outlier 2 52 detected on PRN 22 RTCM Type1 Outlier 2 25 detected on PRN 19 RTCM Type31 Outlier 2 94 detected on Slot 14 RTCM Type31 Outlier 2 53 detected on Slot 14 RTCM Type31 Outlier 2 41 detected on Slot 24 Missing Expected Type31 on Slot 15 Missing Expected Type31 on Slot 16 RTCM Type31 Outlier 2 21 detected on Slot 14 RTCM Type31 Outlier 3 07 detected on Slot 23 RTCM Type31 Outlier 2 63 detected on Slot 24 RTCM Type31 Outlier 3 24 detected on Slot 14 RTCM Type31 Outlier 2 60 detected on Slot 24 RTCM Type Outlier 2 17 detected on PRN 19 RTCM Type31 Outlier 3 25 detected on Slot 14 RTCM Type31 Outlier 3 26 detected on Slot 23 RTCM Type31 Outlier 5 15 detected on Slot 23 RTCM Type31 Outlier 2 14 detected on Slot 24 Unrealistic Tynel RRC OT NAY detected on PRN 7 E
128. ple satellite systems the following convention has been adopted a GPS satellites are identified by their PRN numbers which range from 1 to 32 b The numbers 33 64 are reserved for WAAS satellites The WAAS system PRN numbers are 120 138 The offset from NMEA WAAS SV ID to WAAS PRN number is 87 AWAAS PRN number of 120 minus 87 yields the SV ID of 33 The addition of 87 to the SV ID yields the WAAS PRN number c The numbers 65 96 are reserved for GLONASS satellites GLONASS satellites are identified by 64 satellite slot number The slot numbers are 1 through 24 for the full GLONASS constellation of 24 satellites this gives a range of 65 through 88 The numbers 89 through 96 are available if slot numbers above 24 are allocated to on orbit spares A3 Page 128 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 ADVANCED POSITIONING AND QC SENTENCES This section describes the message structure of the following advanced positioning and QC output messages WesternGeco TRINAV WesternGeco TRINAV v3 VERIPOS UKOOA Output VERIPOS UKOOA 2 Output GPLCT Veripos Applications Axiom O O OOOO In order to provide the necessary outputs VERIPOS have designed two proprietary formats containing information relative to position information and statistical measure as recommended by UKOOA The VERIPOS UKOOA and VERIPOS UK
129. pos LBR1 Service RTCMa Station Data W Veripos Secondary via NTRIF User Configurable r User Configurable Closest 10 Stations Client Socket cancel RTCM Mode selection Rev No A3 Page 19 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 1 6 RTCM Beam Once RTCM Input has been named use the drop down menu to identify the Beam supplying the RTCM message selecting the correct beam is important as each one has a predefined list of VERIPOS stations Note The beam selection in the receiver and Verify QC need to be paired i e selecting a Beam in Verify QC only determines which stations are displayed in the station list it does not control which Beam is selected in the VERIPOS IMU The IMU must also be configured to use this same Beam see relevant VERIPOS IMU manual RTCM Input Name station Data w Weripos Secondary via NTRIP Mode User Configurable Y Beam stations re Input IO Device Client Socket hi IP Address localhost Fort 6000 me RTCM Beam Rev No A3 Page 20 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 2 1 7 RTCM Stations If the user has selected User Configurable next select the actual Stations to be decoded by
130. ptive naming convention will assist in distinguishing the RTCM source when operating Verify QC lf no name is entered for an RTCM input name will default to the VERIPOS beam name or Closest 10 Stations if Closest 10 Stations mode is selected 5 2 1 4 Station Data VERIPOS recommend users tick the VER POS station data type box This allows the user to select from the predefined lists of reference stations that are available on each VERIPOS downlink beam and ensures that the Ultra and Apex corrections will be decoded and available All are pre configured for use Where RTCM from an external source is required it can be input using a serial port The Secondary via NTRIP must be ticked if the RTCM is being received via NTRIP When the Secondary via NTRIP box is ticked if the RTCM being received via L Band antenna were to drop out Verify QC v1 12 switches to use NIRIP RTCM corrections 5 2 1 5 Mode Verify QC can automatically detect the Closest 10 Stations received on the RTCM input for decoding The beam and station then do not need to be selected and so are removed from the dialogue VERIPOS recommends that when selecting Closest 10 Stations all available stations are enabled on the demodulator LD6 RTCM output port Alternatively if Mode is set to User Configurable the user can manually select a preferred list of stations from the Stations list for decode by Verify QC RTCM Input Mame Yeri
131. r which is automatically set to 0 Note the VERIPOS Apex and Ultra calculations use a fixed elevation mask of 7 A3 Page 29 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 2 New DGNSS Calc Click Config DGNSS Calculation New DGNSS Calc to configure a new calculation Mame cp Mode verbe Standard Selection Closest D Veripos Stations Y stations 01 Aberdeen CIC Vick c3 Tananger C4 Netherlands LICS Falmouth LITE Kristiansund Height Ad een DGNSS Calculation dialogue 5 4 2 1 DGNSS Calc Name Allocate a name to the calculations in the Name box Use a descriptive name to make it easy to identify the individual calculations when viewed in the Calculation Status window View Calculation Calculation Status If left blank Verify QC will assign a name automatically based on the number of reference stations selected e g when 5 stations are selected the software will assign the name Network of 5 When one station is selected the name of that station will be assigned as the name of the calculation Page 30 Rev No A3 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 2 2 DGNSS Calc Mode Choose the desired calculation Mode Uncorrected VERIPO
132. r typical marine survey operations and states that In order to carry out rigorous QC the covariance matrix generated by the least squares computation should be used to generate test statistics and quality measures It recommends the following Test Statistics 1 w test used to detect outliers 2 F test used to verify the model which is being used to account for errors in the DGPS observations lt recommends also the following Quality Measures 1 Error Ellipse an approximate graphical representation of the positional standard deviation in two dimensions 2 External Reliability the effect of the maximum MDE Marginally Detectable Error on the computed position These recommendations are particularly aimed at survey applications but could be applied equally to DP applications Rev No A3 Page 120 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 B 2 NMEA 0183 STANDARD Rev No Date The National Marine Electronics Association NMEA has developed a specification defining the interface between various pieces of marine electronic equipment The standard permits marine electronics to send information to computers and to other marine equipment via a serial interface A full copy of this standard is available for purchase at their web site www nmea org The current version of the standard is 3 01 GPS receiver communica
133. ra corrections the Unit variance Semi Major and PDOP of the calculated PPP Position and its calculation mode Rev No A3 Page 81 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 5 QC View QC accesses views displaying the position status and quality information Fie Config Logging Action SS Tools Window Help i o GPS 10 DAZ aay MSS H Differential Calculation Qc Error Ellipses Logging Time Series Overall Status Calculation History Status Report View QC Menu 8 5 1 Error Ellipses Error Ellipses displays position error ellipses over the entire calculation setup Each ellipse is colour coded for ease of identification and a key displays the solution deviation compared to the selected reference solution Error Ellipses View Rev No A3 Page 82 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 The error ellipses view can be altered using the scroll wheel of the mouse Highlight the error ellipse for a specific calculation by clicking on the calculation name in the Position box Right clicking in the window allows the user to change parameters Reference Position kb Trial Point Hide Tracks Hide Table yN Ultra Position Mode V Apex Sca
134. rantee the performance of position calculations that include correction data from 3 party non VERIPOS RTCM stations When interfacing a non VERIPOS RTCM source uncheck the VERIPOS box The RTCM Input dialogue will change to the following layout RTCH Input Mame Station Data Yeripos Use Closest 3 Secondary via MTRIP Station Mew Edit Delete Input IO Device Client Socket bs IP Address localhost Fort e000 omes Non VERIPOS RTCM Stations Rev No A3 Page 23 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Click on New A New Station dialogue helps you to define non VERIPOS stations New Station Mame Girdle Ness RICM ID 686 Local Station GLONASS Shitt ctetgerg chit h New Station Enter the station Name and RTCM ID The RTCM ID is obtained from the reference station provider If the RTCM ID is unknown it can be read from the RTCM message header in the Verify QC IO view after the Device IO settings have been entered Select View O then right click and change the input source to RTCM The RTCM ID is stamped at the start of the decoded RTCM header information in each message In the example below RTCM messages with ID 0505 and 0506 are being input Seil 98West RTCM M505 1 7 17 0 58 34 8 Eh lt 1 27 gt Rlofr HS Ke CHB
135. riod set in the Tides Interval and is updated with the new values after the interval has passed The Tides logged files Tides Info and Sprint are unaffected by this check box they are updated after the interval period 5 4 5 7 Time Reference The Time reference is the time stamp format used in the UltraTides TidesInfo message e HH MM SS This time format is Hour Minutes Seconds in UTC GPS This time format is seconds starting at 00 00 00 6 Jan 1980 Rev No A3 Page 38 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 5 4 5 8 Output Format MSS Tides can output the Tides information via Serial Port Server Socket or Datagram in addition to the Tides information being logged to file The Output Format selects the format of data that will be output on the selected IO Device The output format can be set to UltraTide or SPRINT Details of these formats can be found in Appendix G The UltraTide output will not include values for Doodson Ultra Tide and Draft for the first 39hrs of use Verify QC will re calculate all Tide values and update the existing Tidelnfo txt file once it has enough data to populate the Doodson filter Any separate records made using real time output will not benefit from this feature 5 4 5 9 IO Device The O Device section supports Real time Tides output via Serial Port Ser
136. rval 4 se M V Hourly Measurement Control Include GLONASS CIA Ez jw Enabled jw Enabled Pseudorange Pseudorange Pseudorange Cartier Phase Carrier Phase v Carrier Phase Doppler Doppler CIDoppler CISNR OSNR OSNR Marker Antenna Observer and Agency Name Number Observer Number Type Type GEODETIC HEN 0 0000 0 0000 0 0000 Agency Edit Edit Edit Comments canes RINEX Logging Rev No A3 Page 47 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 6 2 1 1 RINEX Version RINEX files that comply with the v2 10 standard can be logged 6 2 1 2 RINEX Station This is for entering a four character Station identifier which will be used as the first 4 characters of the RINEX log files 6 2 1 3 RINEX Run By The operators name may be entered 6 2 1 4 RINEX Observation Interval The files are automatically split at midnight if an interval is not selected The drop down menu allows users to select RINEX Logging Interval of 1 15 or 30 seconds RINEX data at a one second interval will amount to approximately 100Mb per day A one second interval is recommended or even required for dynamic users 15 and 30 second intervals are more suited to static users Hourly creates a new file every hour 6 2 1 5 Measurement Control The three Measurement Control dialogue boxes C A
137. s This can be beneficial in environments with significant masking or in geographic areas of higher ionospheric disturbance where scintillation can effectively reduce the amount of satellites in view or when working in areas that are subject to masking of satellites Rev No A3 Page 33 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 4 3 Ultra This menu option is available only with an Ultra enabled dongle VERIPOS Ultra service is based on the Precise Point Positioning PPP technique Using this technique the GNSS orbit and clock errors in the GNSS systems are corrected and remaining system errors are estimated or mitigated to a high degree of accuracy giving a position solution with a decimetre level accuracy The Ultra calculation is automatically made available when the dongle is enabled for Ultra The Ultra calculation is possible where the conditions exist as follows 1 The Verify QC dongle is enabled for Ultra 2 GPS receiver has dual channels and is receiving both frequencies 3 The VERIPOS demodulator is enabled for the Ultra Service 4 The Ultra station ID is enabled on the demodulator output port 5 The Veripos check box is ticked in the Station Data dialog box The Ultra GPS and GLONASS Ultra calculation requires the following additions 1 The Verify QC dongle is enabled for Ultra and Glonass
138. s valid 3 4 hhmmss ss Identifies time in UTC for which all information in the string is valid ee Number numerical Sequential number incrementing by 1 for every extra string Maximum is 99999999 after which an automatic reset back to 1 takes place Averaging Period numerical Fixed period 8600 seconds over which the VERIPOS Apex or Ultra heights are averaged in seconds Sample Count numerical Number of VERIPOS Apex or Ultra height samples that were included to derive the antenna height average Minimum is 50 of Averaging Period maximum is Averaging Period Latitude ddmm mmmm Location where height and tide information is valid degrees minutes and decimal minutes Longitude dddmm mmmm Location where height and tide l information is valid degrees minutes and decimal minutes Longitude E or W Hemisphere Rev No A3 Page 146 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Rev No Date 0 Mean Height hh hh metres Mean of the VERIPOS Apex or Ultra heights during the Averaging Period Mean of Height SD hh hh metres Mean of the Height SD s associated with the VERIPOS Apex or Ultra heights during the Averaging Period This is an indication of the quality of the VERIPOS Apex or Ultra heights 12 SD of Heights hh hh metres Standard deviation of the VERIP
139. s a general picture of the Verify QC operational status bi Overall Status Inputs L1 L2 GPS GPS GLONASS 11 13 15 17 18 19 13 15 17 18 19 22 24 26 30 OF 09 14 15 16 17 23 24 er BEER GR Carrier a B Doppler Ephemeri Ephemeri Ephemeris p ris 13 15 17 18 19 22 24 28 17 18 19 22 09 14 15 16 17 23 Em ab BERA Corrections Corrections Corrections 01 02 03 04 05 06 07 08 3151711819 1711819122 09 14 15 16 09 10 11 12 13 14 15 16 CH Aberdeen E rails af 17 18 19 20 21 22 23 24 5 C2 Wick Veripos LBR1 Service RTCM e 5 Se C5 Falmouth Ext RTCM OCE Kristiansund lo C7 Bodo O CD Bologna Constellation C9 Hammerfest OC C10 Vardo 22 a e A 14 Calculations wad E Ultra GLONASS daten 18 19 22 DOP mm CW Ultra 4 Ooooeeooos OOooooooodsd 22 Apex 22 C1 Aberdeen C2 Wick C3 Tananger C4 Netherlands C5 Falmouth C6 Kristiansund C1 Aberdeen C5 Falmouth C6 Kristiansund C2 Wick C3 Tananger C4 Netherlands PPP REF REG 19 Overall Status View The overall sta
140. s all have a prefix Cn in front of their name Rev No A3 Page 32 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 eme Mode Veripos Standard selection Ae Selected Below Stations Height Aid oa DGNSS Calculation Stations using Closest RTCM Input Stations Selecting C1 and C3 means that the 1 and the 3 closest stations will be used in the calculation independent of their station name or station ID This means that the data for the closest 4 station will automatically take the place of the closest 3 station in case the latter is no longer received similarly closest non VERIPOS stations all have a prefix Nn in front of their names Mame Mode verbe standard selection Ae Selected Belov T stations Co Hammertest C10 Vardo wl AL AR MIM AL AR WINS ISLA Rx Height Aid oneer DGNSS Calculation Stations using Closest non VERIPOS RICH Input Stations Using these closest RTCM Input feature allows the user vessel to roam a larger or even a Global area without the need to closely monitor or update the station selection Checking the Height Aid tick box adds an observation based on the height entered in the Calc Settings dialogue Note Enabling height aiding allows the Standard GLONASS Only and Standard calculations to work with as little as 3 GNSS satellite
141. s is defined in seconds The output interval of Type 3 and Type 16 messages is set in minutes 5 4 6 9 PPP Ref Terminators By default a carriage return CR is added to each RICM message The CR can be removed An additional option exists to add a Line Feed LF to each RTCM message A3 Page 41 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 5 5 POSITION OUTPUT There are no software limitations in the Verify QC to the number of outputs that can be configured 5 5 1 New Click Config Position Output New This will open the following dialogue Position Output Mame op SE Message Message ea V GGA Options e Default Alstom PPP C i Server Socket Mone ke Group Output Name 5 5 1 1 Position Name A Name can be given to the output Use a name that indicates which calculation is being output and the external system connected 5 5 1 2 Position Select the Position calculation to be used The pull down menu displays the list of all user configured calculations Apex and Ultra will be included where these are enabled on the dongle Rev No A3 Page 42 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Rev No Date Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 5 5 1 3 Position Message Select th
142. s reported in the Calculation Status view 2 Alternatively the Backup One solution will be output provided its mode is Differential or Reduced Differential 3 Alternatively the Backup Two solution or the Backup Three solution or the Backup Four solution will be output provided its mode is Differential or Reduced Differential 4 Alternatively an uncorrected solution will be output Steps 2 and 3 are omitted from the process if no backup solutions have been selected A smoothing process is used during switches between the different stages of the backup process allowing Verify QC to seamlessly fall back without steps or interrupting in the Ultra position output The smoothing process removes the initial difference between the previous and current calculation stage over a 100sec time period 5 4 4 Apex This menu option is available only with an Apex enabled dongle VERIPOS Apex service is based on the Precise Point Positioning PPP technique Using this technique the GNSS orbit and clock errors in the GNSS systems are corrected and remaining system errors are estimated or mitigated to a high degree of accuracy giving a position solution with a decimetre level accuracy The Apex calculation is automatically made available when the dongle is enabled for Apex The Apex calculation is possible where the conditions exist as follows 1 The Verify QC dongle is enabled for Apex 2 GPS receiv
143. scale Rev No A3 Page 92 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Status Report GNSS Health History PI X WWW GY 04 00 08 00 12 00 16 00 20 00 GLONASS All Healthy Status Report View GNSS Health History The RTCM Availability View shows the RTCM message availability of Ultra Apex and individual DGPS reference stations since the start of the present day The number of station outages exceeding 5 minutes is listed in a separate column Status Report RICH Availabilty 14549 Available out of 14695 Receved 69 60 Availability C1 Aberdeen Ce Vick Ca Tananger Ca Netherlands CS Falmouth Ch Kristiansund CY Bodo LD Bologna CY Hammerfest C10 ardo NI IALA Rx Ne IALA Rx Ma IALA Rx Ee S Fn EH S S G E Status Report View RTCM Availability Rev No A3 Page 93 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No 8 6 LOGGING Verify QC v1 12A on board LD6 User Manual AB V MA 00584 Vveripos The Logging menu contains all views available to the user for monitoring the logging status The Logging functionality contains logging of all GNSS amp RTCM input data ALF and File Config Logging Action View Tools Window Help es aoe Of uw GP GNSS Differential Calculation QC View Menu Logging Config Change Log
144. t directory LD6 mportExport VQC Config on the USB memory stick so that a QC configuration file can be opened via the File menu within Verify QC Be EC e Ga Removable Disk F LDGImportExport VOC Config File Edit View Tools Help Organize Share with e Burn New folder di Name Ke Favorites BE Desktop Lu Events NM Downloads _ LD6 VOC Config alm Recent Places LDG VOC Config aps MediaFire __ LD6 VQC Config t3m E gt LD6 VOC Config ver Refer to section 4 5 for information regarding the USB default directory and restoring QC configuration files from USB When running Verify QC on an LD6 there is an Export Config Files option available within the LD6 MMI which backs up the QC configuration files in addition to LD6 configuration files For further information regarding this feature please refer to the LD6 Operations Manual Page 106 Rev No A3 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 12 2 LOGGED DATA RETRIEVAL Verify QC data files that can be archived using File Manager are e Configuration e Tides e ALF e RINEX To archive data from the LD6 for QC insert a USB stick in to the LD6 If not already inserted to launch file manager Use the file manager on screen to locate the data then copy and paste files to the memory Stick 12 2 1 Tides Data retrieval To remov
145. t values included in average Maximum Maximum of height values included in average Average of the standard deviation of height values included in average Latitude Latitude at given time Longitude at given time Average of semi major of height values included in average Geoid Sep Separation between the Geoid and the WGS84 reference ellipsoid MSS Calculation table Time for which information is valid MSS Calculation 5 445 4 March 2007 16 00 00 Tides View MSS Calculation Table Input Status table Status of height input into Tide filter Can show No Position Converging Converged Hold off Can show Active or time until hold off period expires Accuracy Shows reported standard deviation of the current height input If the standard deviation exceeds the threshold it also shows the threshold Rev No A3 Page 78 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Input Status Converged 5 March 2007 11 23 37 19 34 0 24 gt 0 2 Tides View Input Status Table Current Statistics table Shows time and date for the current averaging period Count The number of accepted height input values during the current ef averaging period followed by OK if count exceeds the minimum 50 required to generate a valid result averaging period Maximum height during the current a
146. te 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 VIEW The View menu contains all views available to the user for monitoring the data input data quality positioning and QC status of Verify QC Fie Config Logging Action em Tools Window Help Oki GPSs C 10 IAQ Ae GN Differential Calculation LC Logging FT Fr FF FTF F View menu structure When Verify QC has been configured for use the user can select the required display screen information Recommend only windows required for the current operation are opened Verify QC does not require windows open on the screen to function correctly Note The range of options available in the View menu is dependent on the dongle enable status or the settings under Tools Advanced Options 8 1 IO Select View IO to display scrolling IO data This terminal window allows the user to view the data input and output on a specified port Correct decoding of the input data is printed in green with the decoded data header printed in black If input data is NOT decoded correctly or is corrupted it will be printed in red or not at all Output data is printed in blue IO GNSS Rx ae ai gt a S 25 Se ai Hee Le D Dan ell N lel pails a l bclzedzells elle d ses lt gt lt U2 lt 0 gt lt 02 lt 188eecre lt U20 lt cre lt g gt a E lt lf gt i Deng Di lg ll
147. tem VOSS web site http help veripos com Rev No A3 Date 09 09 2015 Page 5 Verify QC v1 12A on board LD6 User Manual Document title Document No Rev No Date Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 1 2 ABBREVIATIONS COM CSL DP DGPS GLONASS System GNSS GPS IALA ID IMU ITRF MF MMI MSL MSS PDF PPP RAM RINEX RTCM SD TCP IP UHF UKOOA USB UTC VGA VOSS A3 09 09 2015 Communication Port Serial Port Concept Systems Limited Dynamic Positioning Differential GPS Globalnaya Navigatsionnaya Sputnikovaya Sistema Russian GNSS Global Navigation Satellite System Global Positioning System International Association of Lighthouse Authorities Identifier Identification Integrated Mobile Unit i e LD6 LD5 LD2 etc International Terrestrial Reference Frame Medium Frequency Man Machine Interface used to control LD6 Mean Sea Level Mean Sea Surface Portable Document Format Precise Point Positioning Random Access Memory Receiver Independent Exchange Format Radio Telecommunication Commission Maritime Standard Deviation Transmission Control Protocol Internet Protocol Ultra High Frequency United Kingdom Offshore Operators Association Universal Serial Bus Coordinated Universal Time Video Graphics Array Veripos Online Support System http help veripos com Page 6 Verify QC v1 12A on board LD6 User Manual veripos Document title
148. tenna Height minus Doodson plus Draft EGM96 EGMO08 or USER depending on user selection veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 o fe Fixed end delimiter SSES Rev No A3 Page 145 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Doodson txt General Description The Doodson txt file contains current system height and tide information at hourly intervals The information in this file is consistent with the information contained in the file Tidelnfo txt but information has been condensed to a fixed averaging period of one hour This file contains comma delimited strings with variable length fields Null fields indicate that no information is currently available they should not be interpreted as zero A checksum is included for extra robustness Negative tide is low tide and positive tide is high tide respectively UltraTide 20070301 23 00 00 31 3600 3599 5236 2829 N 00143 5183 E 5 90 0 09 0 11 5 74 6 06 5 45 0 45 0 18 5 72 44 84 0 00 0 27 EGM96 22 Field Field Name Format or Units Description amp Comments Number TalkerlD Standard UltraTide or ApexTide position used dependant or VQC VQCnnnTide with nnn being the version of Verify QC used Date yyyymmdd Identifies year month and day for which all information in the string i
149. then the talker ID in the tide output files Tidelnfo txt amp Doodson txt will be UltraTide or ApexTide depending on which solution is used for the tides calculation When VQC is selected the talker ID will be VQCnnnTide where nnn represents the Verify QC version number For example if Verify QC v1 12 is used it will have a talker ID of VQC112Tide 5 4 5 4 Geoid Model Verify QC v1 12 supports the use of a Mean Sea Surface MSS model relative to which the user can estimate tides The Mean Sea Surface is the displacement of the sea surface relative to a mathematical model of the earth It closely follows the Geoid approximated by EGM models though with additional Mean Dynamic Topography deviations due to currents etc The Geoid Model has 3 options available and can be selected from Config Calculation Settings For further information regarding geoid models within Verify QC see section 4 4 1 3 Currently the DTU10MSS model is unavailable for use with Verify QC As a result the DTU10MSS will remain unavailable for selection within the Tides configuration 5 4 5 5 Tides Interval Interval is the period over which the height information is averaged to remove the impact of heave A 10 minute averaging interval is recommended for the Tides calculation 5 4 5 6 Output every second When this box is checked the interval of the real time output of tides message is 1 second The message is repeated for the pe
150. tings are configured in a second dialogue Config Calculation PPP Ref RTCM Output PPP Ref RICH Output Station Ident gag Type 1 Type 3 wv Enabled w Enabled Interval e Fiter al 1 00 Type 2 Terminators Server Socket i Enabled Port TEE Irter va server Socke E Datagram LDE Port Duration 4 00 Station Health o lO Device lO Device Type 16 Erek eg PPP Ref RTCM Output dialogue 5 4 6 5 PPP Ref Station Ident Use this to set the RTCM Station ID of the PPP Ref corrections between 0 1023 5 4 6 6 PPP Ref Station Health Use this to set the RICM Station Health of the PPP Ref corrections between 0 7 As defined in RTCM v2 3 where 0 is healthy and 7 is unhealthy 5 4 6 7 PPP Ref IO Device The O Device section supports RTCM output via Serial Port Server Socket and Datagram Details are in the Appendix A3 Page 40 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB V MA 00584 5 4 6 8 PPP Ref RTCM Settings The PPP Ref calculation can output the RTCM messages required for a single frequency DGPS calculation i e Type 1 Type 2 and Type 3 messages PPP Ref also supports Type 16 messages to keep DGPS systems up to date on the source of the DGPS corrections Each of these messages can be enabled and their output intervals set The output interval of Type 1 and Type 2 message
151. tion is defined within this specification The idea of NMEA is to send a line of data called a sentence that is totally self contained and independent from other sentences There are standard sentences for each device category and in addition NMEA permits hardware manufactures to define their own proprietary sentences for whatever purpose they see fit All standard sentences have a two letter prefix defining the device using that sentence type For GPS receivers the prefix is GP followed by a three letter sequence defining the sentence contents All proprietary sentences begin with the letter P and are followed with 3 letters identifying the manufacturer controlling that sentence NMEA consists of sentences the first word of which called a data type defines the interpretation of the rest of the sentence Each data type has its own unique interpretation and is defined in the NMEA standard Each sentence begins with a and ends with a carriage return line feed sequence no longer than 80 characters of visible text plus the line terminators The data is contained within this single line with data items separated by commas The data itself is ASCII text and may extend over multiple sentences in certain specialized instances but is normally fully contained in one variable length sentence The data may vary in the amount of precision contained in the sentence For example time might be indicated to decimal parts of a second or location may be shown with 3
152. tra heights 12 SD of Heights hh hh metres Standard deviation of the VERIPOS Apex or Ultra heights during the Averaging Period This is an indication if the variation of the height due to vessel motion and position quality Minimum of Heights hh hh metres Minimum of the VERIPOS Apex or Ultra heights during the Averaging Period Maximum of Heights hh hh metres Maximum of the VERIPOS Apex or Ultra heights during the Averaging Period 5 Doodson hh hh metres Estimated tide less antenna height above Mean Sea Surface from the Doodson filter First available after 39 hours 6 Ultra Tide hh hh metres Local tide based on the Mean Sea Surface derived from the Doodson filter First available after 39 hours 7 Geoid Tide hh hh metres Local tide relative to user selected Geoid see field 22 Available instantaneously after user configured hold off time Antenna Height hh hh metres User entered height of the antenna above the waterline hh hh metres Local offset between the user selected Geoid and the WGS84 reference ellipsoid sch wech gt oO sch Geoid Separation The draft Calculated as the current Doodson value minus the Doodson value for the first record e Vertical Bias hh hh metres Geoid Model A3 Page 144 09 09 2015 Verify QC v1 12A on board LD6 User Manual The vertical bias detected between Ultra Tide and Geoid Tide Calculated as An
153. tting up a new system or when Verify QC stops receiving data from the GNSS Receiver 7 1 2 1 GPS GLONASS Request Ephemeris The command requests the latest GPS or GLONASS ephemeris data from the receiver These settings can be accessed via Action Receiver GPS Request Ephemeris and Action Receiver GLONASS Request Ephemeris Verify QC will actively request the ephemeris during normal software operation as required Users are not required to request the ephemeris once the software is operational 7 1 2 2 Request Almanac Action Receiver GPS Request Almanac and Action Receiver GLONASS Request Almanac requests the latest GPS or GLONASS almanac data from the receiver Verify QC actively requests the almanac Not required once the software is operational 7 1 2 3 Request lono Action Receiver GPS Request lono requests the latest GPS ionospheric model information from the receiver Verify QC actively requests the ionospheric model information Not required once the software is operational 7 1 3 Send Command Action Receiver Send Command allows specific commands to be sent to the receiver These must conform to the receivers proprietary command structure Refer to manufacturer s documentation for details Rev No A3 Page 50 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No Rev No Date AB
154. tum must be used The Height must be antenna height above the WGS84 ellipsoid The Variance and Covariance terms are elements from the Variance Covariance matrix of the position fix computation un scaled The External Reliability is the maximum positional effect of an undetectable error in an observation This quantity is related to the Power of the test probability that the MDE would be detected and the Significance level used a The values recommended by UKOOA should be used see UKOOA Guidelines for The use of Differential GPS in offshore surveying Issue no 1 Sept 1994 i e a Significance level of test 1 and the Power of the test 80 b If values other than those given above are used this must be explicitly stated by the contractor Fix Status Codes SatusCode Meaning O O o 0 Lies Bad Fix Altitude Aiding Weighted Height used in Fix Altitude Hold 2D Fix Computation Type Codes Te Code Meaning O O O o o o l Single Frequency SSS S o a GLONASS Augmented O OOS ooo on Correction Type Codes TypeCode meaning OOOO OOOO D Lg Corrections S fa Single Frequency pseudo range diff corrections H Dual Frequency pseudo range diff corrections i a Satellite Orbit Corrections No of ref stations gives the number of reference stations in use for this fix not the number of stations available This field must be set to O if the fix is not differential Page 134 Verify QC v1 12A on b
155. tus view has three zones The area to the left indicates the status of the inputs the centre area indicates the status of the received GPS GLONASS and RTCM data and the area to the right indicates the status of the outputs Each area is described in more detail as follows Inputs area indicates if the receiver data is being received and decoded When Receiver both halves are green the receiver data is receiving and decoding successfully Red indicates a failure indicates whether almanac information is available for each satellite GPS GLONASS green Unhealthy satellites are shown in yellow and disabled satellites are shown in red indicates that the RTCM data for each RTCM input is being received RTCM Link x and decoded If both halves are green then the RICM data Is received and decoded successfully Red indicates a failure shows the location of GPS green circle and GLONASS orange Constellation square satellites and their status white below elevation mask yellow unhealthy red disabled Rev No A3 Page 89 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No L1 L2 area GPS GLONASS Corrections Calculations Outputs area Output x veripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 indicates whether the pseudo range carrier and Doppler observations for satellites above the horizon have been received green Satellites below th
156. umber of sentences being transmitted and the number of the sentence being transmitted are indicated in the first two fields If multiple GPS GLONASS etc satellites are in view use separate GSV sentences with talker ID GP to show the GPS satellites in view and talker GL to show the GLONASS satellites in view etc The GN identifier shall not be used with this sentence GS V SN KR XX_XXK XX hh lt CR gt lt LF gt Lk 4 ENT d and en SNR C No 00 99 dB Hz null when not tracking Azimuth degrees True 000 to 359 Elevation degrees 90 maximum Satellite ID number Total number of satellites in view Sentence number 1 to 9 Total number of sentences 1 to9 Notes 1 Satellite information may require the transmission of multiple sentences all containing identical field formats when sending a complete message The first field specifies the total number of sentences minimum value 1 The second field identifies the order of this sentence Sentence number minimum value 1 For efficiency it is recommended that null fields be used in the additional sentences when the data is unchanged from the first sentence 2 A variable number of Satellite ID Elevation Azimuth SNR sets are allowed up to a maximum of four sets per sentence Null fields are not required for unused sets when less than four sets are transmitted 3 Satellite ID numbers To avoid possible confusion caused by repetition of satellite ID numbers when using multi
157. used in the Fix n pide el Satellite PRN Numbers S PRN numbers have format I2 and are e I3 n 1 l2 Variable of Satellites used in Fix space separated Number of Reference Stations used for this 12 Variable Fix 00 99 Ids of the Reference Stations used in the I5 n 1 14 Variable ae e Fix are space separate CTO 1 mm Gergen ers Ill Field Formats Ax Alphanumeric text Ix Integer Field Fx y Floating point field Where X gives the total length including the decimal point and decimals y the number of decimals If a sign or is included in the field the sign must be immediately adjacent to the number it relates to with no spaces in between i e 3 12 Alphanumeric text fields must be left justified and numeric fields must be right justified The field sizes are selected with a space between each field This aids manual readability and protects against overflow Rev No A3 Page 136 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Document title Document No Vveripos Verify QC v1 12A on board LD6 User Manual AB V MA 00584 Comments 1 9 Record Identifier Age of Record Altitude Above MSL Geoid Separation Fix Status Codes Single Frequency Status Code Meaning sis No or Bad Fixes E Altitude Aiding Weighted Height used in Fix shows the calculation used as different calculations can be labelled 1 2 3 etc time of the first char
158. vent Log View Source C3 Tananger C6 Kristiansund C1 Aberdeen C5 Falmouth C1 Aberdeen C1 Aberdeen C1 Aberdeen C5 Falmouth C5 Falmouth C5 Falmouth C5 Falmouth C1 Aberdeen C5 Falmouth C5 Falmouth C1 Aberdeen C5 Falmouth C5 Falmouth C2 Wick C3 Tananger C5 Falmouth C5 Falmouth C5 Falmouth C6 Kristiansund C6 Kristiansund C5 Falmouth C5 Falmouth C5 Falmouth C5 Falmouth C5 Falmouth C2 Wick C5 Falmouth C5 Falmouth C5 Falmouth C5 Falmouth Cin Aan Page 94 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 The Time column displays date and time information The Mode column indicates if the event is for the users information or if it constitutes a warning Warnings are displayed when critical data inputs time out The Event column provides a description of the event The Source column gives an indication of which process detected the event The event log can be sorted by any of the columns Clicking on the column name changes the sort order for each column Alternatively the sorting parameters can be set by right clicking on the view menu and selecting options under Sort by Show Sort By Time Descending Mode Ascending Event Descending Source Descending Display Mode Event Log View Sort By Options Individual columns can be hidden by right clicking on the view and select
159. ver Socket and Datagram 5 4 5 10 Tides Antenna Height The Antenna Height entry has been moved to Config Calculation Settings in Verify QC Version 1 10 Details can be found in section 4 3 1 of this document 5 4 6 PPP Ref Calculation The PPP Ref calculation Config Calculation PPP Ref Calculation uses the current position of the Apex or Ultra calculation as a virtual reference station location for which real time DGPS corrections in RTCM format are calculated This calculation is specific to VERIPOS This function allows highly stable and accurate DGPS corrections to be calculated and then be output to external DGPS systems or a telemetry link 5 4 6 1 PPP Ref Name PPP Ref Name is used to allocate a name to the PPP Ref calculation PPP Ref Calculation x Name FPF Ref from 4pex Position ape sl Elevation Mask ho ence PPP Ref calculation dialogue A3 Page 39 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 Rev No Date 5 4 6 2 PPP Ref Position This allows the PPP solution to be used as the reference position for the PPP ref process to be selected Users can select depending on their availability from Ultra or Apex 5 4 6 3 PPP Ref Elevation Mask This sets the user elevation mask for PPP Ref calculation 5 4 6 4 PPP Ref RTCM Output The actual RTCM output parameters and IO Device set
160. veraging period Current Statistics Centre 11 30 00 22 9 06 339 DK 29 61 0 11 29 48 29 71 Tides View Current Statistics Table 8 4 4 PPP Ref The PPP Ref calculation uses the current position of the selected Apex or Ultra calculation as a virtual reference station location This allows highly stable and accurate DGPS corrections to be calculated which can be output to external DGPS systems or a telemetry link Note the PPP Ref calculation will only generate an RTCM output whilst the selected Apex or Ultra calculation has an converged status i e respectively reports Apex or Ultra in the Calculation Status View The full status of the PPP Ref calculation can be monitored using View Calculation PPP Ref The view displays the status of the PPP position calculation used as a virtual reference station location Initially following the start of the PPP calculation only the PPP position Rev No A3 Page 79 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual Vveripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 and its calculation status Mode are shown in the PPP Ref view Once the PPP calculation is converged i e reports Apex or Ultra the status of RTCM DGPS corrections that are currently being output is also displayed Once the calculation Mode depending on the selected PPP solution reaches an Ultra or Apex status th
161. veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 8 3 5 Demodulator Status This view presents a table with decoded information from the last 5 demodulator status messages and atime series view with the Signal Strength values for the last 24 hours The sample rate for the Signal Status is 60 seconds Demodulator Status Yeripos LBR1 Service Status Demodulator Status Freq Offset Hz Status SNP dB Hz 1539 9825 Locked 1539 9825 Locked 1539 9825 Locked 1539 9825 Locked 1539 9825 Locked SNR Avg Power Demodulator Status View Demodulator Status Table time of the demodulator status message ea Frequency of L Band Inmarsat satellite currently in use Transmission rate of L Band Inmarsat satellite currently in use Freq Offset Hz Tuning frequency offset for the demodulator Status Shows the current L Band lock status Should read Locked under normal conditions Signal to Noise Ratio Indicates strength of signal lock to selected L Band dB Hz Inmarsat satellite Avg Power at the output of the variable gain amplifier normalized to the optimal Power power at that point and expressed in dB Hz y 25 Hide Table AOR Hide Graph Demodulator Status View Options Right clicking on the view menu allows the user to view the demodulator status information of another demodulator source or simplify by hiding the table or the graph
162. xample shows two periods of poor DOP and one period of low satellite numbers forecast over the coming 12 hour period Verify QC s program menu is locked out when the warning pop up box is open The pop up will disappear when the warning is acknowledged Access to Verify QC s program menu is restored Additional DOP warnings for the next 12 hours are shown in the Info Bar at the bottom left of the Verify QC main program window These are independent of the DOP warning enable disable status Rev No A3 Page 53 Date 09 09 2015 Verify QC v1 12A on board LD6 User Manual veripos Document title Verify QC v1 12A on board LD6 User Manual Document No AB V MA 00584 7 3 1 Disable The DOP warning feature can be disabled by ticking the Do not show this dialogue again box or select Action DOP Warnings Disable The DOP warning status can be reversed by selecting Action DOP Warnings Enable 7 3 2 Display Current DOP warning To recall the most recent warnings select Action DOP Warnings Display Current DOP Warnings 7 4 CSL RAW OUTPUT lt is possible to force the instant output of Eohemeris lonospheric and UTC CSL Raw records on the configured CSL Raw Output IO device Note This function applies where the dongle is enabled for CSL output and Verify QC is providing an output to a Concept Systems Limited navigation system These actions are available under Action CSL Raw Output Rev No A3 Page 54 Da

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