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CGO|CHC GEOMATICS OFFICE USERMANUAL

1. s CGO CHC GEOMATICS OFFICE USER MANUAL Introduction About this Manual Welcome to the CHC Geomatics Office Manual This manual is designed to provide the information that you need to effectively use the full power and capabilities of CHC Geomatics Office hereafter referred to as CGO It also describes how to install and use CGO software Revision December 2013 Version 1 0 1 Technical Support If you have a problem and cannot find the information you need in the product documentation contact the CGO support center Your Comments Your feedback about the supporting documentation helps us to improve it with each revision E mail your comments to support chcnav com World Wide Web site For an interactive look at CHC Navigation visit our site on the World Wide Web www chcnav com Disclaimer Please read this user guide before using the software so that it can be used in a proper way CHC Navigation holds no responsibility for the wrong operation In addition CHC reserves the rights to make changes of the user guide regularly Copyright Copyright 2009 2013 CHC Shanghai HuaCe Navigation Technology Ltd All rights reserved II INTRODUCTION CONTENT 1 1 1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 6 1 2 1 2 1 1 2 2 1 2 3 1 2 4 2 1 2 2 2 3 2 4 2 5 2 6 2 6 1 2 6 2 2 6 3 2 6 4 2 6 5 2 7 2 8 S L 3 2 3 3 CONTENT OOOO NN II E T E E EE T E EE E EE EE E E
2. Software installation and uninstallation CGOffice User Guide SP3 precise ephemeris H sp3 1 3 03 08 95 aV1993 129 0 0 0 00000000 96 d ITR91 FIT JPL 681 432000 00000000 C C f f i i IR Zb Y lt gr ge lt ze CC CC CCC CCC CCCC CCCC CCCC CCCC CCCCC CC CC CCC CCC CCCC CCCC CCCC CCCC CCCCC 19 1 2 3 12 13 14 15 21 28 0 0 0 0 0 000 0 0 000 0 0 000 10 10 10 10 10 10 10 10 10 10 10 10 11 0 0 0 0 0 0 0 0 0 0 0 0 0 900 00000000 49016 0 0000000000000 0 0 0 0 0 00000 0 0 0 0 0 0 0 0000000 0 000000000 0 0000000 0 000000000 0 0 16 17 18 19 20 21 23 24 25 26 0 0 0 0 0000000 00 0 0 00 0 0 0 0 0 00 0 0 00 0 0 0 0 0 O 0 0 0 0 0 00000 10 10 10 10 10 10 OF 0 000000 0 0 0 0 0 0 0 0000 0 0 0 0 0 0000 0 000 EE LOCOS CECGE BECCE CECCO CCCCE 0 00000000000 0 000000000000000 0 00000000000 0 000000000000000 0 0 0 0 0 0 0 0 0 0 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC cecccccccocccccceccccccccccccccccccccccccccccccccccccccccc CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC ccecccecccccccccccecccccccccccccccccccccccccccccccccccccccc 1993 l l 12 12 14722 1196 24023 109 2074 6873 6236 SCHEIER 638510 628800 155300 152700 900420 932300 329980 917100 6464 26950
3. Elevation mask 5 m A E k f Figure 6 2 Elevation Mask lt gt Sampling interval Sec Enter a value for the processing interval given in seconds The processing interval may be larger than the current observation time interval but should be a multiple of it This parameter is used to define the default sampling time interval in seconds between the epochs observations to be processed This is useful when the data was recorded at a fast rate e g every 0 5 seconds and you want to process only every 10 seconds This is also of importance considering that different processing intervals within a project would lead to different weighted observations in the Network Adjustment GNSS differential processing is always optimistic with its analysis of standard errors and this effect is increased by a high processing frequency lt gt Minimum Epoch Number CGO will consequently delete the data that contains less continuous epochs than the minimum epoch number requires Minimum epoch number the software requires is two or more than two and the default number is five The Observed carrier phase must be continuous to ensure the good quality of the baseline processing Therefore data with frequent cycle slips are poor quality data and in most cases should be deleted lt gt Auto Processing There are 2 options 1 Advanced 2 Common If you select advanced option the software will automatically eliminate the bad observation
4. 1 1 2 Import Data After creation of the project you can import raw data to process 1 1 3 Process Baselines CGOffice User Guide 1 Click File Import Source File or Hotkey F1 the Import Files dialog will appear Choose the type of data you want to import Select the files to import and click ok Check Source Data dialog will appear Check Source Data Stati File Name bi Us CGL2 C Documents C Documents C Documents C Documents Start Time 2009 04 02 02 01 55 0 2009 04 02 03 12 55 0 2009 04 02 02 03 45 0 2009 04 02 02 02 30 0 End Time 2009 04 02 04 04 50 0 2009 04 02 04 04 10 0 2009 04 02 04 03 25 0 2009 04 02 04 03 55 0 Duration 02 02 55 00 51 15 01 59 40 02 01 25 Antenna Heigh 0 1590 0 1950 0 1970 0 2000 Figure 1 5 Check the Source Files Antenna Type unknown unknown unknown unknown Cancel Survey Type Vertical Vertical Vertical Vertical gt 2 Check and if necessary edit the following parameters point name Antenna Height Antenna Type Survey Type Then click OK 3 After that CGO automatically displays the network plot observation file list baseline list station list and so on You can also edit point name Antenna Height Antenna Type Survey Type in Files page Process Baselines 1 Set parameters gt CEL Figure 1 6 Plot Select Processing Config Baseline Processing All Baselines from the main menu o
5. 11843 3247 19025 22421 13 193 6805 129 0 0 0 00000000 319150 022500 963990 908000 998840 664200 271260 632800 21020 7502 16795 31253 17928 23147 21964 12337 844810 277100 647210 023300 366120 929600 100040 728800 0 0 10 0 430 0 108 0 059218 000000 813964 000000 899048 000000 945737 000000 62 Software installation and uninstallation P 13 13306 857100 V 13 P 27 19350 820260 V 27 P 28 V 28 EOF 9739 738600 26864 612400 11662 222500 19491 879100 11990 042400 13316 378500 13959 644490 298 246400 23316 420800 SP3 LINE 1 col col col col col col col col col col col col col col 1 SP3 LINE 2 col col col col col col SP3 LINE 3 col col 12 b 6 4003 111190 symbol version id P V mode flag year start month start day of month start hour start minute start second start number of epochs data used coordinate system orbit type agency name symbols GPS week seconds of week epoch interval mod julian day start fractional day symbols number of satellites 4790 062110 22360 523490 17582 690790 18156 904400 18317 660940 17208 928500 CGOffice User Guide 628 240251 0 000000 14 651464 0 000000 52 520005 0 000000 H a V 1993 1 29 0 0 _0 00000000 Hp d ITR91 FIT he HH 681 432000 00000000 HO
6. Datum A mathematical model of the earth designed to fit part or all of the geoid It is defined by the relationship between an ellipsoid and a point on the topographic surface established as the origin of the datum It is usually referred to as a geodetic datum The size and shape of an ellipsoid and the location of the center of the ellipsoid with respect to the center of the earth usually define world geodetic data Error ellipse Graphically displays the quality of computation result It represents the standard deviations in North East and Height direction For baselines the values of the best solution are displayed A reference circle indicates as diameter of the circle the maximum derived standard deviation values of the currently activated objects in North or East A reference bar right to it indicates the maximum standard deviation in height DOP Dilution of Precision An indicator of the quality of a GPS position It takes account of each satellite location relative to the other satellites in the constellation and their geometry in relation to the GPS receiver A low DOP value indicates a higher probability of accuracy Standard DOPs for GNSS applications are PDOP Position 3 D HDOP Horizontal 2 D GDOP Geometrical 4 D VDOP Vertical height only TDOP Time clock offset only RDOP Relative Dilution of Precision Range Float solution A solution obtained when the baseline processor is unable to 6
7. The Observation and Residual Map Subpage will show up You can use the observation edit tool see below to inspect baseline related observation data and to select the time spans to be used for processing The screen displays the times of satellite tracking by two or more observation stations You can edit the time span of collected data disable selected satellite tracking information You can also clear the check box to delete the bad satellite Sat Phase Sum lt B3 gt Total Epoch 723 Sample 1 Sec Unprocessed ratio 0 00 rms 0 0000m is E El o E ha Kal n a E E K K ho ho ho On ho sch co 1 E o ha K Figure 2 12 Baseline observation data map At the bottom right corner you can see the satellite Residual Graph if you have process the baseline Different color curves represent different satellite Residual error The length of the time bar represents the total observation time from the left start time to the right end time BSUS WOZ2 WU Wezs PEI 13014 Weil GPST_ 2012 02 20 07 19 30 10Minutes cell 2012 02 20 08 20 50 Figure 2 13 Residual Graph 19 2 6 4 2 6 5 2 7 2 8 Process Baselines CGOffice User Guide Stations Page Lists for station name local geodetic coordinates north and east coordinate height parameters of constraints You can set known points and delete stations by context menu Local Latitude East Coordinate m Height
8. Unit and Format Advanced Name Yalue T tle CHE Geomatics Office Description Reference Surveyor Operator Date 2013 11 17 Vertical Datum Equipment Figure 1 2 Project Attribute Process Baselines CGOffice User Guide 3 Click Project Datum to switch to the Project Datum tab see Figure 1 3 Then Click change button and coordinate system management dialog will appear as shown in Figure 1 4 Project Attribute Coordinate System Datum Projection Made Central Meridian China Beijing 54 Transverse Mercator 111 00 00 OO0000 E Figure 1 3 Project Datum 4 Define your coordinate system and click OK Coordinate system management Coordinate system name China Beijing 54 China xian 80 China CGCG 2000 HE OU LE Map rid k6b2002 2o0ne1 EGD2002 Zone KGb200220ne3 KGD2002 Zo0ne 4 k6b20022o0ne1 MG E GD2002 Zone2 NGI kE6b2002 Z2o0ne3 GI EsGc20022o0ne4 MaI Korea Mew BesseliiZo Korea New Dec Zo Korea New Bessel o Korea New Dess Zo Korea New Bessel Zo Korea New Besseli fo ES Ellipsoid Projection Datum Trans Horizontal Vertical Semi major axis 65370245 000000 Inverse Flattening 1 F Cp 30000000 Axis Positive Direction North ei m cu Wi at i Azimuth Start Direction North Azimuth Le Figure 1 4 Coordinate System Management 5 Click OK Now you have finished setting up a new project
9. 0 065039 0 464471 22 20 E elt 5 Syn Loop Pass 3 2009 10 14 08 10 15 0 24752 994769 0 006371 0 001108 0 020253 0 021260 0 86 E 23 c9 Syn Loop Pass 3 2009 10 14 08 21 15 0 13745 772321 0 000347 0 000582 0 000958 0 001174 0 09 E an 10 Syn Loop Pass 3 2009 10 14 08 21 15 0 17741 979698 0 006765 0 009983 0 002051 0 012233 0 69 E alH cil Syn Loop Pass 3 2009 10 14 08 03 45 0 10882 119936 0 001643 0 000111 0 001926 0 002534 0 23 E C12 Syn Loop Pass 3 2009 10 14 06 04 00 0 15642 987388 0 006833 0 000187 0 002122 0 007157 0 46 E mi C13 Syn Loop Pass 3 2009 10 14 06 05 00 0 5032 716078 0 000111 0 000967 0 000214 0 000997 0 20 E HE 214 Syn Loop Pass 3 2009 10 14 06 05 00 0 15817 163657 0 006975 0 010973 0 001451 0 013031 0 82 E alH CIS Syn Loop Pass 3 2009 10 14 06 05 00 0 14984 323863 0 013600 0 010193 0 003787 0 017412 1 16 El ma C16 Syn Loop Fail 3 2009 10 14 08 21 15 0 15475 084895 0 384642 0 392104 0 087473 0 556190 35 94 E a C1 Syn Loop Fail 3 2009 10 14 08 21 15 0 22109 482534 0 045045 0 072575 0 039678 0 094183 4 26 El i C16 Syn Loop Fail 3 2009 10 14 08 10 15 0 23412 561396 0 347659 0 308853 0 042860 0 467005 19 95 E iH C19 Syn Loop Pass 3 2009 10 14 08 21 15 0 16432 852259 0 008061 0 010677 0 004935 0 014260 0 87 Figure 6 8 Loop For the unqualified closure loop and repeated baselines the analysis and reprocess can be done as follows a Edit the closure loop and repeated baselines and reprocess these baselines until
10. 4 7 Error Ellipse Projection Parameters Projection Method Transverse Mercator Projection Projection Scale 1 0000 Projection Height 0 0000m Original Latitude 0 00 00 00000 N Central Meridian LO 117 00 00 00000 E North Additive Constanifn 0 0000m East Additive Constanife 500000 0000m Figure1 14 Adjustment Report 2 To export the results in word format you can select File Export from the main menu and the Export dialog will appear Switch to the Project Summary Report to export the document 10 1 2 1 2 1 1 2 2 1 2 3 CGOffice User Guide Process Baselines Post Process Kinematic PPK data New Project Refer to 1 1 1 New Project Import Data Refer to 1 1 2 Import Data Figure 1 15 PPK Project Plot Process Baselines 1 Check Switch to Files tab to check the station name Antenna Height Antenna Type and Survey Type If necessary you can edit them 2 Setting Known Point If you want to set control base points switch to Station tab right click a base point and select from its context menu the option Setting Known Points Then the PPK Setting Known Point dialog appears as shown in Figure 1 16 11 Process Baselines CGOffice User Guide NO Station Type Local Latitude Std Lat sec Local Longitude Std Lon sec Ellipsoid He Std H m North Coor td Mimi East Coord Std E m Height m Std hm 1 SRO2 Base 34 48 35 00184 N 0 0000 3 21 21 04140 W 0 0000 543 360 0 000 3
11. Observation Station Duplicate Baselines Network Adjustment etc Report settings allow you to individually enable and disable sections of the report or other options for display Baseline Processing Report Static Baseline Processing report To create Baseline Processing Reports 1 Perform baseline processing 2 If necessary select Report Template Management Baseline Report from the main menu Then Baseline Report Configuration dialog appears You can set the content of your Baseline report baseline Report Configuration Baseline Summary Tracking Summary Observational Data Residuals Baseline Components Processing Style Cancle Figure 8 1 baseline report configuration Select baselines To open the baseline Report do one of the following From the main menu select Report Baseline Processing Report From the Project Bar select baseline Report eo eer Y Hotkey F9 CGO automatically generates and open baseline report Kinematic Baseline process report 46 Tool CGOffice User Guide PPE report settings Saving path C Program Files HUACENAV CHC Geomatics Offce CG _ Saving style txt jcsy HTML BLH e Cancel Figure 8 2 PPK report settings Kinematic Baseline Process Report includes 3 parts Coordinate System Map and Baselines The first part of the rover gives the information on number of total epoches epochs involved in computation and fixed solution 8 2 Loop Repor
12. 0 000749 0 001903 0 001389 0 002472 3 20 Figure 2 15 Loops List Output Window An output window documents many processes warnings and errors By default it is positioned at the bottom of the working area Status Bar A status bar covers the bottom of the main window displaying information Whenever you move the cursor above a menu or toolbar item a small text informs you about the action that will be performed when the item is chosen 3 Project Management 3 1 Create a New Project To create a new project do one of the following O Select the main menu command File New O Click E from the toolbar Project O Click New Project from the Project bar 20 3 2 Process Baselines CGOffice User Guide O Hotkeys Ctrl Tab New Project Project Name 013 11 25 42 Project Folder C Program Files HLUIACENAYCHC Geomat Figure 3 1 New Project Project Name Default name is the assembly of local time you can edit it Project Folder Default path is the root folder of CGO exe you can change it The New Project dialog allows you to create a new project When you click OK button system will automatically create a folder with the name of the project which consists of several subfolders as shown in Figure 3 2 y S EphFiles O Incoming EC Moving PEphFiles kel Reports G RINES CT ObsFiles mu g Example a0 Example log 260 Document Text Document 24 KE KB Figure 3 2 Project Subfolder Data
13. 0023 2724 8508 0 0013 14125 9530 Yes 2 B2 41224 A122 A302 Li Fixed 01 31 30 16 4 0 0122 Quali 5906 5511 0 0013 1578 6425 0 0022 4654 2450 0 0012 7603 0430 Yes 3 B3 A1324 A132 A302 LcFixed 01 31 45 46 0 0114 Quali 7251 5571 0 0011 5935 4759 0 0019 7379 0830 0 0010 11927 5236 Yes Figure 2 9 Baselines list lt gt Context Menu Right click on the baseline page the context menu will appears ee Processing Single Baseline Processing Chosen Baselines Contig Baseline Processing Clear Selected Baselines Solution Baseline Processing Report Reverse Baseline Disable Baseline Enable Baseline Delete Attribute Baseline Residual Graph Figure 2 10 Baseline Right Click popup Menu 18 Process Baselines CGOffice User Guide lt gt Reverse Baseline Reverse the begin point and end point lt gt Enable Disable Baseline If checked all baselines with sessions conforming to the selection will be enabled or disabled Repeated Line Lists for repeated baseline group the baseline components dX dY and Dz length difference length difference tolerance and relative error Baselines Repeated Line NO Baseline Group Quality Dim DY m Dz m Dis Diff m Dis Diff Ltd m Relative Err PPM 1 6281 Fail 0 2400 0 0269 0 1149 0 1802 0 0000 14814 31 Figure 2 11 Repeated Line lt Observation and Residual Map Right click on the baseline page then select baseline residual graph from the context menu
14. 2 symbols col 4 60 comment COren CC SP3 LINE 23 epoch header record Cok deo symbols x col 4 7 year start 1993 col 9 10 month start ad col 12 13 day of month start 29 col 15 16 hour start 0 col 18 19 minute start 0 sol 21731 second start _0 00000000 SP3 LINE 24 position and clock record col Y symbol P col 2 4 satellite id 1 col 5 18 x coordinate km 14722 638510 col 19 32 y coordinate km 6464 319150 col 33 46 z coordinate km 21020 844810 65 CGOffice User Guide Software installation and uninstallation col 47 60 clock microsec 78 059218 SP3 LINE 25 velocity and clock record col 1 symbol V gol 2 4 satellite id 1 col 5 18 x dot decim sec 1196 628800 col 19 32 y dot decim sec 26950 022500 col 33 46 z dot decim sec 7502 277100 col 47 60 cl rate 10e 4 msec sec 0 000000 SP3 LINE 22 numeps numsats 1 1 last line col 1 3 symbols EOF YUMA Almanac Format ID PRN of the SVN Health 000 usable Eccentricity This shows the amount of the orbit deviation from circular orbit It is the distance between the foci divided by the length of the semi major axis our orbits are very circular Time of Applicability The number of seconds in the orbit when the almanac was generated Kind of a time tag Orbital Inclination The angle to which the SV orbit meets the equator GPS is at approx 55 degrees Roughly the SV s orbit will not rise above
15. CGO Shanghai Huace Navigation Technology Ltd CopyRight C CHC www chenav com cos EEN P Trimble E fe coos Tycoo Use Tycco vse Sg CH Geo UltreSnep Hm Ge 16 32 Figure 1 10 Baseline Residual Graph Command Process Baselines Baselines Repeated Line Observation and Residual Map CGOffice User Guide C B1 50756051H hcs gt 533 C 62 50756051H hcs gt 548 B3 53311051H hcs gt 548 Phase Sum lt B3 gt Total Epoch 723 Sample 60 Sec L1 Fixed ratio 14 50 rms 0 0112m E E E Im E E Project Plot Baselines Stations 7 Loops Figure 1 11 Observation and Residual Map 4 View results Select Report Baseline Processing Report from the main menu 1 1 4 Known Points Settings Select Adjustment Setting Known Points Hotkey F6 the Input known points dialog appears as shown in Figure 1 12 You can edit the coordinates of control points and select the constraint type Input known points Point Name Nortbim Eastim 50756 EEGEN 412416 7549 53311 2F 95936 7932 415102 3153 4559 2791904 5413 416000 9905 Local 1 1 5 Adjustment him 247 5134 235 2717 230 4050 Lon DM a 110 07 50 638 110 11 13 184 110 10 01 829 Lat Dh Hm Constraints 25 14 42 85459 N 247 5134 Mone 25 16 01 52245 N 235 2717 Plone 25 1352 63098 N 230 4050 Plone Figure 1 12 Setting Known Points 1 Select Adjustment Adjust
16. Files to save the result when saving the whole project Eph Files to save the Ephemeris files Incoming to save the future files related to the project such as precise ephemeris files Moving to save the export baselines processed result Obs Files to save intermediate observation files PEph Files to save the downloaded precise ephemeris files Reports to save reports RINEXs this folder will save the source files RINEX files if users execute the operation of transforming to RINEX Additionally you may click Cancel button if you don t need it any more Open a Project To retrieve an already stored project from disk Do one of the following 21 3 3 3 4 CGOffice User Guide Process Baselines O Select the main menu command File Open O Click from the toolbar Project O Click Open Project from the Project bar Save a Project To save ac project at any time Do one of the following O Select the main menu command File Save e Click from the toolbar Project The current project is stored with the same name with which it was opened or saved the last time No dialog appears Close a Project To close the current project select the main menu command File Close When you close a project a warning dialog will appear asking you whether you want to save changes to the project or to leave the project without storing or to cancel the closing process 4 Project Coordinate Sy
17. Menu Right click on the Files area the context menu will appears NO File Name Station Start Time End Time Duration Antenna Heigh To Antenna Ph Antenna Type Survey Type Serial Num Data Type D TCODocmggleemmietidetgeng 2009 08 28 11 43 45 0 01 39 15 1 6350 6350 unknown Vertical 2 Com View RINEX File 810 04 15 0 2009 08 28 11 44 45 0 01 40 30 1 6050 unknown Vertical 14347_ Static 3 C Documt Check Source File 8 10 02 45 0 2009 08 28 11 36 45 0 01 34 00 1 6500 unknown Vertical 14131_ Static Transform To RINEX Delete Attribute Figure 2 8 Observation Files Transform to RINEX file Right click item Transform To RINEX to transform the original file again and then RINEX data would be saved in the RINEXs folder of the project folder Delete you can directly delete the chosen file 2 6 3 Baselines Page lt gt Baseline table Open the table of baselines within the project For each baseline you will find information on ID begin point end point solution start time and time span of observation ratio rms the baseline components dX dY and dZ with standard deviations and the slope distance between the start and end point Baselines Repeated Line Observation and Residual Map NO BaselineID Begin Point EndPoint Solution Syn Time Ratio RMS Qual Dim Std Di m DY m Std D m Dz m Std DZ m Distance Use 1 B1 41224 A122 A132 LcFixed 01 38 30 11 0 0142 Ungu 13156 1092 0 0014 4356 8220 0
18. RTE 28 SATELLITE TRACK DIALOG adicta 28 IMIPORTIPREGISE ER HEMERIS costes cto Nr ke 30 PROCESS EEN 30 BASELINES PROCESSING OVERVIEW an a eine 30 BASELINE PROCESS PARAMETERS DIALOG a ites 31 General settings aueh 31 PEO GSS OMe Are ee EE 33 TropoSpnere and lonosphere ed 33 Advanced settings ie 34 PROCESS BE 35 CHECK BASELINE PROCESS RESULTS 20 Ne eege Eege 36 Baseline GUSTY COMTI Ol nace ee 36 Loop and Repeated baseline check 36 Free Network Adjustment check 38 FACTORS INFLUENCE ON BASELINE RESULTS AND SOLUTIONS 38 REPROGESS BASELINE Saale 38 NETWORK ADJUSTMENT 2 5 Er 2 HERE EEE RER 39 NETWORK ADJUSTMENT OVERVIEW en 39 PREPARATION BEFORE NETWORK ADJUSTMENT ni ea a 40 Coordinate system settings and Network Check 40 Network Adjustment Senine ic ei 40 Set Control Pont use enden 42 SEENEN SE RESULTS ee ee ee elektr 45 8 REPORTS O 46 8 1 BASELINE PROCESSING REPORT nee ae ea tia 46 8 1 1 Static Baseline Processing report ee u 46 8 1 2 Kinematic Baseline process report 46 8 2 LOOP REPORT ratom ee ee ee see 47 8 3 ADIUSTIMENTOREP ORT eebe eege ee Eege 48 8 4 ADDITIONALREPORT a ee ee 49 8 5 DATA EXPORT Eee EE 49 8 5 1 Baseline Computation Result Export 49 8 5 2 DAF TIE ana IOS TIE EXPO buno adan tte 50 8 5 3 Project Summary REDOT A ee ovatedaseAgiabaceuauecasamaaveseians 51 9 TOOL ne NEE SEE BERNIE ERWARTEN EISEN NE 51 9 1 COORDINATE TRANSFORMATION ege bereed ee ee 51 9 2 ANTENNA MANAGEMENT ee AA Ee 52
19. To open the adjustment Report do one of the flowing From the respective Adjustment dialog click the button Report From the main menu select Report Adjustment Report From the Project Bar select Adjustment Report group Hotkey F8 CGO automatically generates and open adjustment report 48 8 4 8 5 8 5 1 Tool CGOffice User Guide Additional report Station Report To open Station Report do one of the flowing O From the respective Adjustment dialog click the button Report O From the main menu select Report Additional Report Station Report CGO automatically generates and open station report The report consists of project information and station list Repeat Baseline report To open Repeat Baseline Report do one of the flowing O From the respective Adjustment dialog click the button Report O From the main menu select Report Additional Report Repeat Baseline Report CGO automatically generates and open repeat baseline report The report consists of project information and repeat baselines list Data Export The Export dialog appears when you do one of the following O Select the command File Export from the main menu O Click from the toolbar Project Baseline Computation Rcesult Export lt gt COSA Baseline file TXT lt gt TGO Baseline file ASC Export to Trimble Data Exchange files Trimble Data Exchange files may contain point coordinates adjustment vectors and terrestr
20. View results 7 If you are not satisfied with the results check for example reference station coordinates 30 6 2 6 2 1 Process Baselines CGOffice User Guide check parameters check observations Then repeat processing Baseline Process Parameters Dialog To open Baseline Process Parameters dialog do one of the following Select Processing Config Baseline Processing O Hotkey F4 e Click option Baseline Process Parameters from the Project bar group Process Baselines O Right click the project plot page select Config Baseline Processing from the context menu General Settings Baseline Process Parameters General Settings Processor Trop and lono Advanced settings Observation Mask Deg Sampling Interval Sec 60 Minimum Epoch 5 Frequency Ephemeris selection Ephemeris Broadcast Satellites System GPS _ sLonass _ compass Figure 6 1 General Settings lt gt Mask Deg The mask allows you to specify the minimum satellite elevation mask for post processing Signals of low elevation satellite are complicatedly influenced by aerosphere and difficult to correct with models Additionally many factors such as multi path and electromagnetic wave can put impact on them Therefore these signals are often poor and should be deleted in the post processing 31 CGOffice User Guide Process Baselines ge e Sa J i i at ui e s Let wl w TT f ia 7 m Ten x d
21. approx 55 degrees latitude The number is part of an equation pi l 80 the true inclination Rate of Right Ascension Rate of change in the measurement of the angle of right ascension as defined in the Right Ascension mnemonic Square Root of Semi Major Axis This is defined as the measurement from the center of the orbit to either the point of apogee or the point of perigee Right Ascension at Time of Almanac TOA Right Ascensions is an angular measurement from the vernal equinox omega 0 66 Software installation and uninstallation CGOffice User Guide Argument of Perigee An angular measurement along the orbital path measured from the ascending node to the point of perigee measured in the direction of the SV s motion Mean Anomaly Angle arc traveled past the longitude of ascending node value 0 1 80 degrees or O negative 1 80 degrees If the value exceeds 1 80 degrees subtract 360 degrees to find the mean anomaly When the SV has passed perigee and heading towards apogee the mean anomaly is positive After the point of apogee the mean anomaly value will be negative to the point of perigee Af 0 SV clock bias in seconds Af 1 SV clock Drift in seconds per seconds week GPS week 0000 1 024 every 7 days since 6 Jan 1 980 0000z Shortcut Key e a ene Ctrl Tab Select File and click N Shift Tab Select File and click O Open project a O o amema K
22. d13 Projection Name Transverse Mercator Projection DTO O O O raise fee Vet te Mal Kai O rah ee Projection Ratio 1 0000 Figure 1 18 PPK Report 2 User Interface 2 1 Introduction This chapter gives you an overview of all basic objects involved in CGO interface 2 2 Startup Of CGO To start CGO Do one of the following o Select Start Programs menu select HuaceNAV CHC Geomatics Office CGO O Double click the desk icon Once start CGO the software main interface appears as shown in Figure 2 1 13 CGOffice User Guide Process Baselines CHC Geomatics Office File Tool Window Help 9 a E Project Project Attribute New Project Open Project Project Plot Files Baselines Stations Loops 3 Info Yarn ee J Closed loop table finished A Completed project saving E HuaceNav CGO_Prj_ Folder Example Example CGO J Eliminating current project memory J Refresh network data J Closing project J Eliminating current project memory Refresh network data J Creating Project J Cancel creating project Ready Shanghai Huace Navigation Technology Ltd CHD Gaonatice OfELCE www chenay com Figure 2 1 CGO Main Interface After creating or opening a project the interface will appear as shown in Figure 2 2 It consists of menu bar toolbars Project bar working area output window and status bar CHC Geomatics Office C Program Files HU
23. data and deal with the cycle slips otherwise you should delete bad data by hand lt gt Frequency This defines the type of carrier phase to be used in the baseline processing The following options are available L1 only L1 processing only L2 only L2 processing only L1 L2 Combination of L1 and L2 data Ln Narrow lane phase combination with f 2803 02 MHz L1 L2 Lw Wide lane phase combination with f 347 82 MHz L1 L2 This is useful for its low 32 6 2 2 6 2 3 Process Baselines CGOffice User Guide effective wavelength 86 2 cm and for finding integer ambiguities on long baselines Lc gt x km lonospheric free combination of L1 and L2 data if baseline longer than the length given in the Advanced Settings page lt gt Ephemeris There are 2 options 1 Broadcast 2 Precise Applying Precise Ephemeris to process long baseline can improve accuracy and broadcast ephemeris is adequate to short baseline lt gt Satellites System There are 3 options 1 GPS 2 GLONASS 3 Compass You can choose the satellites system for baseline processing according to your observation files Processor Baseline Process Parameters Amt General Settings Processor Trop and Iono Advanced settings Processing Mode Automatic Static Observation time setting Minimum static observation time span 10 000000 Splite sessions if start time differs 1120 000000 Figure 6 3 Processor Processing Mode Pr
24. m Constraints NO Station Local Longitude Elipsoid Height North Coordinate m 1 A122 27 48 33 78212 N 104 48 09 57393 E 969 2822 3137852 6400 707022 1617 969 2822 AA in Fer d N 104 S6 35 00868 E 1503 6960 139261 3877 692729 2798 503 6960 3 AX Setting Known Point UN 104 51 23 32623 E 1487 1197 3131708 6599 702213 1315 1487 1197 4 CGI Delete a 109 21 50 93822 E 564 8526 3521457 6147 225727 1268 564 8526 5 DGbi At 221 gt gt N 109 21 31 39409 E 574 7683 3521718 3238 226228 7191 574 7683 6 DG02 31 35 14 44487 N 109 21 28 53308 E 535 8866 3521562 7779 226315 7596 535 8866 DG04 31 35 10 56319 N 109 21 37 22373 E 615 3409 3521426 5739 226094 1409 615 3409 Figure 2 14 Stations List Loops Page For each Loop you will find information on ID Loop Type Quality Loop Length closure error components EX EY EZ and total length closure error E Loop number of baselines and relative closure error It also gives baseline information that make up of the loop Loop NO Loop Type Quality Lines Duration Loop Length m Ex m Ey m Ez m E Loop m Relative Err ppm Bien co Syn Loop Pass A 2009 04 02 03 12 55 0 1334 145969 0 003634 0 007574 0 005392 0 009982 7 3 HH Ci Syn Loop Pass A 2009 04 02 03 12 55 0 1245 246627 0 004433 0 007797 0 008311 0 012223 9 80 HH C2 Syn Loop Pass 3 2009 04 02 02 03 45 0 1230 759137 0 000050 0 001680 0 001530 0 002273 1 85 oad CS Syn Loop Pass 3 2009 04 02 03 12 55 0 772 578606
25. 0 Software installation and uninstallation CGOffice User Guide resolve the integer ambiguity search with enough confidence to select one set of integers over another It is called a float solution because the ambiguity includes a fractional part and is non integer Ellipsoid A mathematical model of the earth formed by rotating an ellipse around its minor axis For ellipsoids that model the earth the minor axis is the polar axis and the major axis is the equatorial axis You define an ellipsoid by specifying the lengths of both axes or by specifying the length of the major axis and the flattening Two quantities define an ellipsoid these are usually given as the length of the semi major axis a and the flattening f a b a where b is the length of the semi minor axis Ephemeris A set of data that describes the position of a celestial object as a function of time Each GPS satellite periodically transmits a broadcast ephemeris describing its predicted positions through the near future uploaded by the Control Segment Postprocessing programs can also use a precise ephemeris that describes the exact positions of a satellite in the past The static and kinematic processors of CGO require binary EF18 format for processing baselines Geoid Model A mathematical representation of the geoid for a specific area or for the whole earth The software uses the geoid model to generate geoidal separations for your poin
26. 00000000 49016 0 0000000000000 19 63 Software installation and uninstallation CGOffice User Guide col 10 12 sat 1 id o l col 13 15 sat 2 id A col 58 60 sat 17 id 26 SP3 LINES 4 7 cor IZ symbols a col 10 12 sat 18 35 52 69 id 2a col 13 15 sat 19 36 53 70 id 28 col 58 60 sat 34 51 68 85 id 0 SP3 LINES 8 12 col 1 2 symbols TF col 10 12 sat 1 18 35 52 69 acc _10 col 13 15 sat 2 19 36 53 70 acc _10 col 58 60 sat 17 34 51 68 85 acc 10 SP3 LINES 13 14 col 1l 2 symbols C col 4 5 2 characters CE Col e 2 characters tc col 10 12 3 characters Cee col 14 16 3 characters Cec col 16 21 4 characters eee col 23726 4 characters CECE col 28781 4 characters ee Col 33 36 4 characters CCCC col 38 42 5 characters cerco col 44 48 5 characters cecce col 50 54 5 characters COCCE col 56 60 5 characters CESCE 64 Software installation and uninstallation CGOffice User Guide SP3 LINES 15 16 col l 2 symbol s f col 4 13 10 column float 0 0000000 col 15 26 12 column float _0 000000000 col 28 41 14 column float 0 00000000000 col 43 60 18 column float _0 000000000000000 SP3 LINES 47 18 col 1 2 symbols i col Ae Y 4 column int 0 col 9 12 4 column int 0 col 14 17 4 column int 0 col 19 22 4 column int 0 col 24 29 6 column int 0 col 31 36 6 column int 0 col 38 43 6 column int 0 col 45 50 6 column int 0 col 52 60 9 column int 0 SPI EINES 19522 col 1
27. 2 6 1 CGOffice User Guide Process Baselines Project Attribute K Hew Project Open Project Figure 2 5 Project Bar The navigator at the left hand side shows a preliminary project structure consisting of project Import Process Baselines Adjustment and Tool etc With a new project these containers are all empty Working Area The working area at the right hand side displays the background for a sketch of the project the project plot and some tables At the time of creation they are all empty Now you may import GNSS data like observation files or other raw data ephemeris data and then use CGO to view or process those data Project Plot Project plot will display points baselines error ellipse plotting scale latitude longitude grids and so on as shown in Figure 2 6 lt gt Points When import kinematic data the filled rectangle represents rover points while the filled triangle represents base points When import static data the filled triangle represents control points and the filled circle represents common survey points 16 2 6 2 Process Baselines CGOffice User Guide lt gt Baselines They are defined by their start and end point To activate a baseline click on it NOTE Color of unprocessed Baseline White Color of qualified processed Baseline Green Color of unqualified processed Baseline yellow Color of baseline selected pink Color of disabled b
28. 853541 482 0 000 467440 454 0 000 543 360 0 000 2 int Rove 34 50 05 05455 N 0 0000 3 23 13 89765 W 0 0000 509 306 0 000 3856327 179 0 000 464582 774 0 000 509 306 0 000 Setting Known Point Constraint Type Coordinate 2 NE N m 3853541 482 O NERh Elm O h 467440 484 OBL OBLH Constraint become effective if checked Zone East Coordinate lt gt Project Plot Files Baselines Stations A Loops Figure 1 16 Setting Known points Select constraint type and enter the coordinates in setting known point dialog then click ok 3 Process baselines Select Processing Processing All Baselines from the main menu Hotkey F2 Figure 1 17 PPK plot 1 2 4 Result Output Select Report Baseline Report the baseline report will be generated automatically 12 Process Baselines CGOffice User Guide CG al one 1 Coordinate System 1 1 Coordinate System Name 1 2 Ellipsoidal PPK Data Calculation Summary Parameter 1 3 Projective Example Parameters 2 Map 3 4007 gt d1 3 1 Base Station 1 Coordinate System Information i e 32 Rover 1 1 Coordinate System Name 3 2 1 d1 3 2 2 d2 3 2 3 d3 3 2 4 d4 1 2 Ellipsoidal Parameter 3 2 5 d5 3 2 6 d6 3 2 7 d7 Major Semi axis 6378140 0000 3 2 8 d8 3 2 9 d9 Flattening Reciprocal 298 2570000 Coordinate System Name shanghai Ellipsoidal Name Zant China 3 2 11 d11 1 3 Projective Parameters 3 2 13
29. 9 3 DOWNLOAD YUMA EPHEMER Sau ae ati ae me 53 9 4 DOWNLOAD PRECISE EPHEMERIS a a aa ee seele 53 9 5 RENIDATA IVMANAGER da A Nascar 54 9 6 RINEX CONVERTER TOOL en mean 55 10 INSTALLATION AND REGISTRATION iii aa 57 10 1 SEHR UR e TC EE 5 10 2 INSTALLING CGO E 57 10 3 SEENEN Eeer 59 APPENDIX zn 22er 60 1 TERMINOLOG ee iin 60 2 SPS PRECISE EPHEMERIS E22 een 62 INUMA ALMANAC e 66 A SHORTCUT RNE a kr keine 67 Process Baselines CGOffice User Guide 1 Quick Start 1 1 1 1 1 Below are the recommended steps in using CGO This step by step guide will quickly get you started on CGO including setting up a new project importing data processing baselines and network adjustment Static data processing In the Start Programs menu select HuaceNAV CHC Geomatics Office CGO It will automatically start CGO New Project 1 To create a new project select the main menu command File New The New Project dialog appears as shown in Figure 1 1 Hew Project Project Mame Example Project Folder E Huacehlay ooo Prj_Folder Folder Cancel Figure 1 1 New Project 2 Enter the name of the new project set the new project storage path and click OK Then the Project Attribute dialog appears Note that the new dialog presents five tabs Project Detail Project Datum Time System Unit and Format and Advanced You can edit these parameters Project Attribute Ee i Project Detail Project Datum Time system
30. ACENAVY CHC Geomatics OfficeiCGO_Prj_Folder12013 12 2 13212013 12 2 132 CG0 File F VierW Processing P Adjustment A Report R Tool TI Window t Help 0 Main Menu ToolBars Project Import WCW File Other Files Project Bar Process Baselines Adjustment Tool 7 Zeen S Project Plot A Files Baselines Stations xf Info Dian Error Saving unit and format table Unit and format table finished Saving station table Station table finished Saving baseline table Baseline table finished Saving closed loop table Closed loop table finished Completed project saving C Program Files HVACEMAV CHC Geomatics Office C W_Prj_Folder 2013 12 2 132 2013 12 2 132 CG0 Output Window emm Status Bar Shanghai Huace Navigation Technology Ltd CopyRight C CHC www chenav com Figure 2 2 Software Interface 2 3 Menu The main menu consists of File Edit View Processing Adjustment Report Tool Window and Help options File Edit View Processing Adjustment Report Tool Window Help Figure 2 3 Menu Bar 14 2 4 2 5 CGOffice User Guide Process Baselines Besides main menu each window has a context menu The commonly used menu items have their own hotkeys You can complete most processes by the submenu items which covers the main processes of each step Toolbars CGO has powerful toolbars Located just below the menu bar they act as a graphical Control center where yo
31. E E NT 1 QUICK START u aan 4 STANG DATA PROCESSING su nee aliadas 4 NEW PROJECT ee ee ensure 4 Import Dardos 5 Process ln 6 KHOWMPOINTES SO de GS ie ee T 9 ACUM rod ds 9 Result elt taa A A A tds 10 POSTEPROCESS KINEMATIC PPR DATA en lasse 11 MEW PTO Ortesis no 11 MPO Dal EE 11 Process Baselines sn as een 11 RESTOU T ee a e eo En TE 12 USER INTERFACE ni ias 13 INTRODUCTION aan a A AA EA 13 STARTUP OREGON 13 MEN tu A ida 14 eier 15 PROJECT BAR vice a ne see 15 et Me 16 Project POE 2 E E A AEN 16 FES PIBE nee A 17 Baselines Pape ee a E ee 18 STALIONS Page nee en Mae Runden een 20 LOODS Pa O 20 OUTPUT WINDOW essen 20 STATUS BAR A aria ia ana 20 PROJECT MANAGEMENT zu ienin 20 CREATE A NEW PROJECT a TTT 20 OPEN A PROJECT ia sd a ee en 21 SAVE A PROJECT aaa 22 3 4 4 1 4 2 4 3 4 4 4 5 Sl 5 2 5 3 5 4 5 5 5 6 6 1 6 2 6 2 1 6 2 2 6 2 3 6 2 4 6 3 6 4 6 4 1 6 4 2 6 4 3 6 5 6 6 7 1 7 2 7 2 1 7 2 2 7 2 3 13 1 4 CLOSE BROJE FT ae ee nee eisen ernennt 22 PROJECT COORDINATE SYSTEM AND ATTRIBUTE s000200000020000000n0nn0nnn nun nn nn nun ann nn an ann nn nenn 22 PROJECT DETAIL a ee udecyaussatsea ateeseouaie E seal adanieasaua vival suc EEA 22 PROJECT DATUM nein ie 23 NME SYSTE Missar een ae 24 UNIT AND FORMAT Essen 25 ADVANCED o EA 25 DATAIMPOR Tis 26 OBSERVATION DATA FORMAT iranan deed a 26 DOWNLOADING DATA FpOoMARECEIWER 27 IMPORT DATA a T E A A E A 27 OBSERVATION EE
32. File F View Processing P Adjustment A Report EI Tool T Window t Help H Pau BB va wa SS A Baselines RepeatedLine Observation and Residual Map Import No Baseline ID Begin Point End Point Solution Syn Time Ratio RMS Qual DX m Std Dx m Dim Std DYim DZ m Std DZ m Distance m Use 1 B1 50756051H 50756 53311 Umproces 01 02 35 0 0 0 000 Check 4961 211 0 000 2933 418 0 000 2184 214 0 000 6163 550 Yes 2 B2 50756051H 50756 54859 Unproces 01 02 05 0 0 0 000 Check 3669 772 0 000 659 267 0 000 1404 738 0 000 3984 363 Yes ee B3 53311051H 53311 54859 01 02 00 rr o 2274 151 0 000 3585 952 0 000 4440 738 Yes Processing Single Baseline Processing Chosen Baselines Config Baseline Processing ae Clear Selected Baselines Solution RINEX File Baseline Processing Report Reverse Baseline Disable Baseline Enable Baseline Delete Attribute Baseline Residual Graph Other Files Process Baselines Adjustment gt Tool A a A ad Project Plot Baselines A Stations A Loops SI Info Warn D er Saving unit and format table Unit and format table finished J Saving station table J Station table finished u Saving baseline table Baseline table finished Saving closed loop table Closed loop table finished Completed project saving C Program Files HVACENAV CHC Geomatics Office CGO_Prj_Folder 2013 12 9 83012013 12 9 830
33. HE 80 HE MapGric KGD2002 Zone1 EGD2002 Zone 2 EGD2002 Zone 3 EGc2002 2one4 KGD2002 2one1 NGI EGc2002 Zone2 NGI EGD2002 Zone 3 NGM EGD2002 Zone 4 NGI Korea Mew Bessel zo Korea New Bessel zo Korea New Bessel zo Korea New Bessel zo Ellipsoid Mame xiansD China Semi major axis 6370140 000 Inverse flattening iif 238 25 A Axis Positive Direction Morth Y Axis Positive Direction East Azimuth Start Direction Morth Azimuth Korea New BesseliZo lt B 4 3 Time System Figure 4 3 Coordinate System Management It contains four time system GPSW GPST UTC Local time If choosing local time you can select the local zone from Choose Local Zone combo box Froject Attribute 1999 12 31 23 59 47 0 O Local time Set Local Zone Figure 4 4 Time System 24 4 4 Unit and Format Process Baselines CGOffice User Guide Use it to view and edit the settings for the display of data units and format Project Attribute Project Detail Project Datum Time System Unit and Format Advanced Hame Coordinate Hei ght Coordinate Decimal Distance Distance Decimal Angle Format Ui 4 5 Advanced Value Meter Meter 3 decimal Meter 3 decimal Deg Min Sen Figure 4 5 Unit and Format Use it to view and edit the advanced parameters of the project Project Attribute Project Detail Project Datum Time System Unit and Format Advanced of Baseline G
34. a Height Antenna type and survey type as shown in Figure 5 3 Satellite Track Dialog Right click the Files page in the working area and then select Satellite Track option from the context menu the dialog see below will appear You can view single point positioning map satellite track summary and SNR Signal To Noise Ratio 28 Process Baselines CGOffice User Guide station Attribute station l single Point Map Tracking Summary Satellite Signal Figure5 4 Single Point Map P Figure 5 5 Tracking Summary 29 5 6 Process Baselines CGOffice User Guide Station Attribute Station Single Point Map Tracking Summary Receiver SM 14299 _ SAT PRN 7 BO 56 SE 4 Di oe Fer OPO 4g nr a 44 40 36 32 20 2009 10 14 06 03 00 2009 10 14 07 09 00 Figure 5 6 Satellite Signal Import Precise Ephemeris To import precise ephemeris sp3 select File Import Precise Ephemeris from the main menu NOTE If you select Precise Ephemeris in Baseline Process Parameter dialog precise ephemeris will be used in baseline processing 6 Process Baselines 6 1 Baselines Processing Overview CGO was designed for fully automated baseline calculation To process your baselines do the following 1 Select baselines 2 Set parameters 3 Click the Process command 4 Processing is performed automatically 5 If necessary re compute 6
35. aseline gray lt gt Error Ellipse A specialty of the project plot is the display of standard errors for each baseline after processing and for each point after network adjustment Standard errors are displayed in form of position error ellipses with height error bars A reference circle indicates as diameter of the circle the maximum derived standard deviation values of the currently activated objects in North or East A reference bar right to it indicates the maximum standard deviation in height Figure 2 6Netwrok map lt gt Context Menu Right click on the project plot area the context menu will appears Files Page Lists for each observation file storage path the point name start time end time and time span of observation the receiver serial number and the type of measurement static or kinematic It also gives full antenna information NO File Name Station Start Time End Time Duration Antenna Heigh To Antenna Ph Antenna Type Survey Type Serial Num Data Type l C Documents Al2Z2 2009 08 28 10 04 30 0 2009 08 28 11 43 45 0 01 30 15 1 6350 1 6350 unknown vertical 13054_ static E C Documents AZ 2009 08 28 10 04 15 0 2009 08 28 11 44 45 0 01 40 30 1 6050 1 6050 unknown vertical IAM Static 3 CDocuments A302 2009 08 28 10 02 45 0 2009 08 28 11 36 45 0 01 34 00 1 6500 1 6500 unknown vertical 14131_ Static Figure 2 7 Observation Files 17 Process Baselines CGOffice User Guide lt gt Context
36. ata to Rinex Format To start CGO Do one of the following O Select Start All Programs CHC Geomatics Office Tools Rinex Converter O Select Tools Transform to Rinex from the main menu O Select Convert to Rinex from the Project bar 55 Tool CGOffice User Guide 7 HeRinex DER File Convert wiew About LOZE File Name EpochDecoded Epoch Converted GPS Eph GLOEph BDSEph Ant Height KH Export Path CHC Navigation Ready Figure 9 7 Rinex Conversion Tool 56 Software installation and uninstallation CGOffice User Guide 10 Installation and Registration 10 1 10 2 System Requirements CGO is designed to run under Microsoft Windows 2000 2003 2008 XP Win7 Minimum hardware and software requirements for CGO are lt Atleast 256 RAM and 1GB Hard Disk lt Atleast Microsoft Windows NT Service Pack 4 lt Atleast Microsoft Net Frameworks 2 0 lt gt Internet access to load data 1f desired Installing CGO The folder on the installation CD ROM contains executables CGO exe Run CGO exe on your CD the Figure10 1 dialog show up ig CHC Geomatics Office Setup Welcome to the CHC Geomatics Office Setup Wizard The Setup Wizard will install CHC Geomatics Office on your computer Click Next to continue or Cancel to exit the Setup Wizard Cancel Figure 10 1 Choose Installation O Click NEXT button to continue the Figure10 2 dialog will show up 57 Software insta
37. ation code Select Help Register from the main menu A dialog appears see below Please enter registration code and click Register Software Register Please send the machine code to support chmay com to obtain the register code Machine Code HSIVAV2K62Z5PAKTXURIVS6OVTNONVUQSW 222 Register Code Figure10 5 Software Registration If you don t have Register code Please send your machine code to Support chcnav com to get one 59 Appendix 1 Software installation and uninstallation CGOffice User Guide Terminology IGS International GPS Geodynamics Service Ambiguity The unknown integer number of the reconstructed carrier phase contained in an unbroken set measurement The receiver counts the radio waves from the satellite as they pass the antenna to a high degree of accuracy However it has no information on the number of waves to the satellite at the time it started counting This unknown number of wavelengths between the satellite and the antenna then is the ambiguity Also known as Integer ambiguity or integer bias Baseline The position of a point relative to another point In GNSS surveying this is the position of one receiver relative to another When the data from these two receivers is combined the result is a baseline comprising a three dimensional vector between the two stations Internally a baseline is built if it has one common epoch between the observations of two stations
38. ay perform a tau test and set tau test limits You may define your own report format and make it known to the adjustment module 40 CGOffice User Guide Network Adjustment Adjustment Configuration Quality Parameters Baseline weighting Use Disqualified baselines in adjustment O No TAU test Minimum fixed error mm chi2 test Significance level Yo Figure7 3 Adjustment configuration Quality Adjustment Configuration Quality Parameters Baseline weighting Number of iteration Maximum number of iteration National constraint adjustment C Seven parameters adjustment Figure 7 4 Adjustment configuration parameters 41 7 2 3 Network Adjustment Adjustment Configuration Quality Parameters Baseline weighting CGOffice User Guide GPS GLO CMP Weighting Yariance Covariance matrix Fixed standard deviation Fixed standard deviation mm i mm 0 7 mm 0 7 Figure7 5 Adjustment configuration Baseline Weighting Set Control Point 1 To open Input Known points dialog do one of the following O Select Adjustment Setting Known Points O Hotkey F6 O Click option Setting Known Points from the Project bar group Adjustment O Right click the project plot page select Adjustment from the context menu 2 Set control points Local If you choose Local the constraint will list
39. ce Coordinate System Used in Conversion Target coordinate system Ellipsoid Marne Parameters Ellipsoid Name WGSE4 Ellissoid Definition Was 1954 04 Parameters Eliinsoid Definition Gs 1984 SemiMajor Axis 6378137 000 Semi major Axis 637813 7 000 H Fitting Parameters Inv Flattening Lf 298 257 Inv Flattening 1 f 208 257 Coordinate Type Geodetic B L H ze Coordinate Type Geodetic B L H ze Source Coordinates Target coordinats Point N Geodetic Latitude E Geodetic Longitudel Point M Geodetic Latitude B Geodetic Longitude E we Ready RUN Figure 9 1 Coordinate Transverter Antenna Management Antenna Manage Tool is used to view and edit the antenna information and correction To start CGO Antenna Management Tool Do one of the following O Select Tools Antenna Manage from the main menu O Select Antenna Management from the Project bar 32 9 3 9 4 Tool CGOffice User Guide Antenna Manage Radnstm sem Center Heebtt ou Deem To Bottom mi Ba Figure 9 2 Antenna Management Download YUMA Ephemeris Select Tool YUMA Eph GPS to download YUMA Ephemeris according to the UTC Time of the Static data Downloading ephemeris successfully downloaded ephemeris files ODER d Ge Download Canceling Figure 9 3 Download YUMA Ephemeris Download Precise Ephemeris 1 To start download precise ephemeris do one of the following O Select Start All Programs CHC Geoma
40. ephemeris file SP3 Observation file mainly consists of original observation of each epoch point information ephemeris information and so on see below Observation Files Point information Original coordinate Ephemens data and ephemeris file Epoch 1 Original coordinate Epoch 2 Original coordinate Observation Information Figure 5 1 Observation Data 5 2 5 3 CGOffice User Guide Process Baselines Downloading Data From a Receiver First transfer your data to computer If using CHC GNSS receivers you can download the data by HcLoader tool or U disk When you use receivers with other brands files should be transformed into standard RINEX format if it is not supported by CGO Import Data 1 To open the import dialog do one of the following O Select File Import Source File O Hotkey Fl O Click option xx Files from the Project bar group Import The import dialog will show up You can press Ctrl or Shift Key to select more files NOTE lt gt Ifa point that you want to import has the same name with a point already in the project CGO checks for the position of the point If the coordinates are apart more than the limit set in the Project Attribute dialog a warning dialog will appear lt gt When importing files the software will automatically check the files the output window will show related warnings lt gt Ifa point that you want to import has the same receiver serial number sta
41. erform adjustment CGO will automatically do adjustment according to the following process a GNSS network connectivity check Next CGO will check the baselines network connectivity If the GNSS network is not connected a message box will show up A GNSS network is not connected Adjustment cannot be done Figure 7 9 GNSS network is not connected b Extract Baseline vector network The first step of network adjustment is to form baseline vector network The principle is lt gt The baseline is not deleted or disabled lt gt The baseline has beginning point and end point name lt gt The baseline has been processed lt gt The unqualified baseline is not set as not allow to process or adjust Free network adjustment Thirdly Freedom network adjustment will be performed You may check the results of the free adjustment in Adjustment report d Constraint adjustment If there are constraints constraint adjustment will be performed When choosing 3D constraint adjustment you need to constrain XYZ or BLH on at least one observation station in WGS system and three observation station in Local system When choosing 2D constraint adjustment user needs to constrain N E on at least one observation station When choosing Height Fitting in Network Adjustment you need to constrain BLH or xyh or h 44 Network Adjustment CGOffice User Guide on at least one observation station e Click Report button yo
42. ernerating in duration of static observation s 00 in duration of PPE observation s length of Baseline km of stations processing with same name allowed distance betweem points m 1100 of Sync ASyne Loop Searching in synchronous session s Figure 4 6 Advanced lt gt Min duration of static observation The minimum simultaneous session in forming baselines for static processing lt gt Min duration of PPK observation The minimum simultaneous session in forming 25 5 Data Import 5 1 Process Baselines CGOffice User Guide baselines for kinematic processing Max length of Baseline If the distance between two points is greater than this value it can t form a baseline Max allowed distance between points Stations will be considered as the same station if their distance is smaller than this parameter Min synchronous session If the synchronous time is greater than this value it can form a simultaneous observation loop otherwise it can form an independent observation loop NOTE The parameters of Advanced tab should be set before importing observation files Or else they will not be effective Observation Data Format CGO support the following data types gt gt CHC type HCN file HCN V2 00 V3 00 version RINEX file O OBS NOVATEL OEM4 V 6 mainboard file NOV TRIMBLE BD950 BD970 mainboard file BD9 HEMISPHERE mainboard RAW Precise
43. esidual chat 38 Network Adjustment CGOffice User Guide 7 Network Adjustment 7 1 If satisfied with baselines processing results you can continue with network adjustment and export results Network Adjustment Overview Generally Speaking the network adjustment can be divided into following steps 1 Before you start a network adjustment set coordinate system process baseline import control points and run the Network Check in the Adjustment module 2 Network adjustment and export results 3 Quality check and analysis Coordinate System Network Adjustment settings Control Point input like Longitude Latitude Grid North East and Height Extract Baselines toform baselines network A 3D Free Network Adjustment Height Fitting Quality Check and Analysis Figure 7 1 Procedure of Network Adjustment You may want to temporarily exclude objects of your network from network adjustment A lot of selection and toggling options which are accessible from the main menu from the project bar or from the project plot area help you to configure your network Before performing a least squares adjustment you can choose to hold the coordinates of one or several control point s fixed during adjustment The project plot displays a little triangle to mark a fixed control point NOTE Note that fixed points will weigh very high within the adjustment They force the adjustment module to adjust all ot
44. ey 1 Function 67 Software installation and uninstallation CGOffice User Guide Alt X Select View and Click M Move Select View and Click E ell Screen 68 Software installation and uninstallation CGOffice User Guide 69
45. following options 1 NE 2 N Zone E 3 NEh 4 N Zone E 5 h 6 BLH 7 BL 8 None Input known points Point Name DLZH EZHX FSH1 FSH2 Northim 4137049 2035 4142500 5255 4144488 6587 4143571 7952 East m 253069 4558 254382 4799 268021 9009 267422 7214 him 40 2050 43 7259 156 9971 133 2264 Lon Demis 114 31 56 224 114 31 16 067 114 22 02 549 114 22 29 905 Lat D M S Him 37 03 41 37646 N 40 2050 37 06 34 79501 N 43 7259 37 06 58 84925 N 156 9971 37 06 31 20485 N 133 2264 Constraints None None None None O wese4 lt WGS 84 Local Figure 7 6 Local Point Input 42 Cancel Network Adjustment CGOffice User Guide If you choose WGS 84 the constraint will list following options 1 XY 2 XYH 3 H 4 BLH 5 BL Input known points Point Name DLZH EZHXx xim 2115854 1347 2113614 7693 m 4635894 0135 4633375 4225 z m 3022065 4217 3027132 3257 Lon Deko 114 31 56 224 114 31 16 067 Lat D M s Him 37 03 41 37646 N 40 2050 37 06 34 79501 N 43 7259 Constraints None None FSH1 2101026 0381 FSH2 2101845 6220 4638705 3756 4638877 8088 3827792 0152 3827098 0602 114 22 02 549 114 22 29 905 37 06 58 84925 N 156 9971 None 37 06 31 20485 N 133 2264 None Cancel O Local Figure 7 7 WGS84 point Input NOTE a All the control point coordinates should be in
46. hen independent observation loop closure is within the limit it means the asynchronous baseline quality is good If independent observation loop closure exceeds limit it means there is at least one baseline of the loop have some problem Repeated baseline The baseline between the two same observation stations during different time span is called duplicate baseline How to Check Closure Error The content and tolerance range vary according to the setting of tolerance The checking result will be displayed in the list of repeated baselines and closure loop Loop NO Loop Type Quality Lines Duration Loop Length m Exim Evim EZ m E Loop m Relative Err ppm E aiH co Syn Loop Pass 3 2009 10 14 06 04 00 0 27412 355664 0 007947 0 000084 0 000396 0 007997 0 29 E ai cl Syn Loop Pass 3 2009 10 14 06 03 30 0 27412 261594 0 001884 0 005182 0 001906 0 005833 0 21 E BO C2 Syn Loop Pass 3 2009 10 14 06 05 00 0 27408 430049 0 006111 0 010576 0 002354 0 012439 0 45 E ar ES Syn Loop Pass 3 2009 10 14 06 04 00 0 26697 906669 0 000770 0 005285 0 000679 0 005384 0 20 E mit C4 Syn Loop Pass 3 2009 10 14 06 05 00 0 26495 464804 0 013946 0 009692 0 003464 0 017333 0 65 E alt cs Syn Loop Pass 3 2009 10 14 06 05 00 0 23110 571584 0 001117 0 004784 0 001002 0 005014 0 22 E BO C6 Syn Loop Fail 3 2009 10 14 08 21 15 0 20862 386875 0 044651 0 081450 0 021476 0 095336 4 57 E alH Er Syn Loop Fail 3 2009 10 14 08 10 15 0 20923 473426 0 339645 0 310072
47. hers points in a way that they will fit the fixed points Be 39 7 2 7 2 1 7 2 2 Network Adjustment CGOffice User Guide sure that fixed points have very precise coordinates otherwise they may induce geometrical distortions of your network Preparation before network adjustment Coordinate system settings and Network Check If necessary select Project Attribute to open the attribute dialog and switch to project datum tab then click change button to open Coordinate System Management dialog You can check the coordinate system information here Coordinate system management coordinate system name Elipsoid Projection Datum Trans Horizontal vertical China Beijing 54 China Xian 80 Ellipsoid Name Nasa We China CGCG 2000 S Le HE 80 HE MapGric Semi major axis 63 813 000 kGD2002 Zone1 KGp2002 20ne2 E Inverse flatteningl1F 298 297 kGD2002 Zone4 G02002 Zone1 HMG x Axis Positive Direction North se kG52002Zone2 NG KZ zonez NGI Y Osis Positive Direction East G52002Zone4 MGI Korea New Bessel o Korea New Besseli Zo Azimuth Start Direction Worth Azimuth E Korea New Bessel lo Korea New Bessel zo Korea New Bessel Zo Ju gt Figure 7 2 Coordinate system management Network Adjustment settings CGO allows you to modify a lot of parameters which may influence the network adjustment You may weigh the standard errors differently depending on the source of the data You m
48. ial data 49 Tool CGOffice User Guide Export Baseline Result Project Summary Report CO Baseline Dec TXT TGO Baseline _Resultt ASC Figure 8 5 Export baseline result 8 5 2 DXF file and log file Export Baseline Result Project Summary Report C60 LOG FILE TAT CGO NET FILE D F 3 Type Point Line Figure 8 6 Export info CGO Log File TXT It stores the messages CGO has output onto the output window CGO Net File DXF Export Network file in DXF Format File selector on the left corner allows you to set the content of the file NOTE Another log file is stored in the project folder E g ProjectName ProjectName log 50 Tool CGOffice User Guide 8 5 3 Project summary Report Baseline Result Project Summary Report Project Summary Reportimordi doc Figure 8 7 Export project summary report 9 Tools 9 1 Coordinate transformation This tool is used to do the transformation between different Coordinate forms To Start Coordinate Transverter tool Do one of the following O Select Start All Programs CHC Geomatics Office Tools Coordinate Transverter O Select Tools Coordinate transform from the main menu O Select Coordinate transform from the Project bar 51 9 2 Tool CGOffice User Guide Coordinate Iransverter File F Configuration S Prameters Calculation C Coordinate Convertion Z Help H Sour
49. llation and uninstallation CGOffice User Guide GG CHC Geomatics Office Setup Select Installation Folder This is the Folder where CHC Geomatics Office will be installed To install in this folder click Next To install to a different folder enter it below or click Browse Folder C Program Files HuaceNay CHC Geomatics Office Advanced Installer Figure 10 2 Choose Path to install Click Browse button for choosing the Path for installation and click Next button to continue installation the Figure10 3 dialog will show up GG CHC Geomatics Office Setup Ready to Install The Setup Wizard is ready to begin the CHC Geomatics Office installation Click Install to begin the installation If you want to review or change any of your installation settings click Back Click Cancel to exit the wizard Advanced Installer Cancel Figure 10 3 Ready for Installation Click Install to start Installation the Figure10 4 dialog will show up when the installation finishes 58 Software installation and uninstallation CGOffice User Guide 8 CHC Geomatics Office Setup Ki e Completing the CHC Geomatics Office Setup Wizard Click the Finish button to exit the Setup Wizard Figure10 4 Installation Finish O At last Click Finish button Now you can use CGO 10 3 Software Registration You can use CGO for 3 Months for free With your purchase of the product you have received a registr
50. ment Hotkey F5 the Adjustment dialog appears as shown in Figurel 13 1 1 6 Process Baselines CGOffice User Guide Adjustaent Free Network Adjustment O Fix Constraint Adjustment C 93D Adjustment Wise e 2D Adjustmer Translation Rotation Scale ze Height Fitting Height Fitting Fixed Distance we Figure1 13 Adjustment 2 If necessary Click Settings button to set the adjustment parameters 3 Select the type of Constraint Adjustment and Height Fitting then click adjust button The software will automatically complete the adjustment operation Result Output 1 Click Report button as shown in Figure1 13 or select Report Adjustment Report the adjustment report will be generated automatically me one 1 Adjustment Settings 2 Adjustment Statistics 3 Control Points Network Adjustment Report 4 Free Adjusted Example Coordinates 4 1 Baselines Input in WGS84 User Name YAOLE Date amp Time 17 43 30 2013 08 01 e 4 2 Adjusted Baselines Project Datum shanghai Geoid Model in WGS84 Project Name Transverse Mercator Projection Zone in Distance Units Meters 4 3 Adjusted Geodetic Height Units Meters Coordinates in WGS84 4 4 Adjusted ECEF 1 Adjustment Settings Coordinates in WGS84 4 5 Adjusted Grid Coordinates and HeightinLocal in Local Basic Parameters System Ellipsoid Name Xiang China tt Luke Major Axis a 6378140 0000m e 46 Coordinate Flattening Reciprocal 1 f 298 2570000 Change
51. nce coefficient Normally the default setting is 3 5 and no need to edit RMS and Ratio 34 Process Baselines CGOffice User Guide When the RMS of the baseline is bigger than 0 04 and Ratio of the baseline is smaller than 1 8 the software will indentify the baseline as unqualified Of course you can edit RMS or Ratio The unqualified baseline will be showed in Yellow in the plot Ambiguity search method There are 2 options 1 LAMBDA 2 OMEGA 6 3 Process Baselines 1 To process baselines do one of the following Select Processing Processing all baselines O Hotkey F2 O Click option Process Baselines from the Project bar group Process Baselines O Right click the project plot page select Processing all Baselines from the context menu Baseline Processing Baseline processing B17 QH101212J hes gt QH114212 hes completed 16 total 30 please wait Solving model Figure 6 6 Baseline process procedure 2 Processing is performed automatically The baseline process information will be update on output window At the same time the color of baselines turns from white to green or yellow disqualified 0 00m 20 00m 40 00m 60 00m OU Dm 100 00m Figure 6 7 Baseline network after process 35 6 4 6 4 1 6 4 2 Process Baselines CGOffice User Guide Check Baseline Process Results Baseline quality control You can check the baseline quality by Ratio and RMS after baseline proce
52. ocessing mode include Automatic Static mode and PPK mode Observation time setting Minimum static observation time span default parameter is 10 minutes Split sessions if start time differs 120 minutes Troposphere and lonosphere Generally you don t need to change the settings of Troposphere For long baseline you can change the parameters to improve the accuracy Troposphere model There are several options 1 Improved Hopfield Model 2 Sastamoinen Model 3 Niell Model 4 Black Model 5 Goad Goodman Model 6 New Brunswick Model 7 Uncorrected lonosphere model 33 Process Baselines CGOffice User Guide There are 2 options 1 Auto 2 uncorrected Baseline Process Parameters General Settings Processor Trop and Iono Advanced settings Atmosphere Model Tropospheric Model Uncorrected Tonospheric Model Meteorological Temperature C 1 18 00 Pressure Millibar 1013 25 Relative Humidity 0 Figure 6 4 Trop and lono 6 2 4 Advanced Settings Baseline Process Parameters General Settings Processor Trop and Iono Advanced settings Quality control Blunder tolerance coefficient Failure if RMS greater than Failure if RATIO less than Ephemeris selection Use broadcast ephemeris if baseline shorter than Use precise ephemeris if baseline shorter than Ambiguity search method Ambiguity searching method Default Figure 6 1 Trop and lono Blunder tolera
53. r Hotkey F2 Then Baseline Process Parameters dialog appears If necessary you can modify the default parameters Process Baselines CGOffice User Guide Baseline Process Parameters General Settings Processor Trop and Iono Advanced settings Observation Sampling 50 7 Minimum Epoch Frequency Auto Auto Frocessing Advanced Ephemeris selection en Ephemeris Broadcast Satellites System GPS GLOWASS COMPASS Figure 1 7 Baseline Process 2 Process Baselines Select Processing Processing All Baselines from the main menu Hotkey F2 Haseline Processing Baseline processing Ba LGL4Z092C hes gt DGU4092C Acs completed total 6 please wait Solving model Figure 1 8 Processing Baselines Wait until Baseline Processing dialog disappears Process Baselines CGOffice User Guide Figure 1 9 The Network Diagram after Baseline Processing NOTE Green quality test was successful Yellow quality test failed 3 If you are not satisfied with the results check for example reference station coordinates check parameters check observations select the baseline Residual Graph from right click menu as shown in Figure 1 10 delete bad observations as shown in Figure 1 11 Then repeat processing CHC Geomatics Office C Program Files HUACENAV CHC Geomatics Office CGO_Prj_Folder 2013 12 9 830 2013 12 9 830 CGO
54. rt and end time but different name from other points CGO will automatically refuse to import the warning bar in the message area will give the reasons for refusing 2 After data being imported a check dialog will appear You can edit Station ID point name Antenna Height Antenna Type and Survey Type It allows you to deselect observation files from the import by clearing check box Check Source Data Use Stati File Name Start Time End Time Duration Antenna Heigh Antenna Type Survey Type Receiver S N 4122 C Documents 2009 08 28 10 04 30 0 2009 08 28 11 43 45 0 01 39 15 1 6350 unknown Vertical 13654 4132 C Documents 2009 08 28 10 04 15 0 2009 08 28 11 44 45 0 01 40 30 1 6050 unknown Vertical 14347_ 4302 C Documents 2009 08 28 10 02 45 0 2009 08 28 11 36 45 0 01 34 00 1 6500 unknown Vertical 14131_ Figure 5 2 Check Source Data 27 5 4 5 5 Process Baselines CGOffice User Guide Observation File Attribute Dialog Right click the Files page in the working area and then select Attribute option from the context menu the Observation File Attribute dialog will appear Observation File Attribute Station Receiver Antenna tem Antenna Antenna sere Application Options Apply Figure 5 3 File Attribute Dialog Switch to Station tab you can view or edit the station name Switch to Receiver tab you can view the information of the receiver Switch to Antenna tab You can view edit Antenn
55. ssing RATIO The best ambiguity set found is compared to the second best RMS RATIO min RATIO reflects the reliability of ambiguity and it depends on several factors like observation data quality and observation condition RMS RMS Root Mean Square V PV VE RMS V Residual error P Weight of observation n f Redundancy RMS shows the quality of the observation value The smaller the RMS value the better the quality of observation value RMS only indicates the precision of inner coincidence Loop and Repeated baseline check The definition of loop closure Loop closure is a good way to check the baseline quality Loop include Simultaneous Observation Loop Independent Observation Loop Theoretically the loop closure should be zero but in practice it is not zero Component error Ene gt AX Ey gt AY gt AZ Relative closing error of loop EAZ 2 2 2 gt s E 36 Process Baselines CGOffice User Guide K Length of the loop Simultaneous Observation Loop Simultaneous loop is formed by synchronous baselines Theoretically the synchronization loop closure should be zero If synchronization loop closure exceeds the limit it means at least one baseline of the loop have problem If the closure is within the limit it means most of the baselines are with good quality Independent Observation Loop Independent Observation loop is consisted of asynchronous baselines W
56. stem and Attribute 4 1 After creation of a New Project Project Attribute dialog will automatically show up Use it to review and edit the status of your project You will find all project related information here It contains four tabs You can also select File Project Attribute from the main menu or Click Project Attribute in project bar to open the dialog Project Detail Use it to view and edit the basic information of the project 22 Process Baselines CGOffice User Guide Project Attribute Project Detail Project Datum Time System Unit and Format Advanced Hame Value Title CHE Geomatics Office Description Reference Surveyor Operator Date Vertical Datum Equipment Figure 4 1 Project Detail 4 2 Project Datum Froject Attr bute Project Detail Project Datum Time System Coordinate System Datum shanghai Frojection Mode Transverse Mercator Central Meridian 117 00 00 000000 E Figure 4 2 Project Datum Click change button the coordinate system management dialog will appear You can select your local coordinates system here You can create a new coordinate system or modify delete an old one NOTE The default coordinate systems cannot be deleted 23 CGOffice User Guide Process Baselines Coordinate system management Coordinate system name Elinscid Projection Datum Trans Horizontal Vertical WD China Beijing 54 China xian 80 China CGCS 2000
57. t To create Loop Reports 1 Perform baseline processing 2 If necessary select Report Template Management Loop Report from the main menu Then Loop Report Configuration dialog appears You can set the parameters of your Loop report Loop Report Edge OF Loop Quality Check Tolerance 2 Absolute Radioff He Fe VertOV ml Cancel Figure 8 3 Loop report 47 8 3 0 2 Tool Hotkey F10 CGOffice User Guide To open the Loop Report do one of the flowing From the main menu select Report Loop Report From the Project Bar select Loop Report CGO automatically generates and open Loop report Adjustment Report To create network adjustment reports 1 2 0 0 gt Perform adjustment Adjustment Report Configuration Basic Configuration Adjustment Settings Adjustment Statistics Constraint Points Free Adjustment Input Baselines Adjusted Baselines ECEF Coordinates 2D Coordinates Error Ellipse Constraint Adjustment Conversion Parameter Adjusted Baselines ECEF Coordinates 2D Coordinates Error Ellipse Height Fitting Height Fitting If necessary select Report Template Management Adjustment Report from the main menu Then Adjustment Report Configuration dialog appears You can set the content of your adjustment report Geodetic Coordinates Coordinate Change Geodetic Coordinates Coordinate Change Cancle Figure 8 4 Adjustment report configuration
58. the same coordinate system b The distribution of control points should be reasonable 7 3 Adjustment 1 To open the Adjustment Dialog do one of the following Select Adjustment Adjustment O Hotkey F5 O Click option Adjustment from the Project bar group Adjustment Right click the project plot page select Adjustment from the context menu Adjustment Free Network Adjustment Fix Constraint Adjustment 53D Adjustment WGS84 we Translation Rotation Scale ze Co 2D Adjustmer Height Fitting Height Fitting Fixed Distance Ke Clase Figure 7 8 Network Adjustment 2 Then the Adjustment dialog appears it allows you to edit some basic adjustment settings 43 Network Adjustment CGOffice User Guide You can click the respective radio button to select the adjustment type Free Network Adjustment Free 3D adjustment in WGS84 system no constraints Constraint Adjustment 3D or 2D adjustment in WGS84 system or Local System constrained by control points Height Fitting Heights fitting constrained by control point height Methods to do height fitting as follows lt gt Fixed Distance At least one point height should be constrained lt gt Plane Fitting Three or more point height should be constrained lt gt Curve Surface Fitting Six or more height should be constrained lt gt TGO Algorithm One or more point height should be constrained 3 After that Click Adjust to p
59. they are qualified The editing method includes delete some baseline observation data and sample interval according to baseline residual b Forbidden or delete some unqualified baselines NOTE The baselines of the loop should meet the following requirements 1 Every baseline of the loop must be used 2 Every baseline of the loop must be calculated 3 The synchronized time of baseline group of loop should be no less than the minimum observational time 37 6 4 3 6 5 6 6 Process Baselines CGOffice User Guide Free Network Adjustment check You can also check the baseline process results in Free Network Adjustment report Please see following chapter for more details Factors Influence On baseline results and Solutions The main factors influence on baseline results 1 The start point coordinate is inaccurate Solution The way to avoid this is to improve the accuracy of the start point coordinate You can use the point with higher coordinate accuracy as start point To get high accuracy coordinate prolong static observation time or conjunct with other WGS84 coordinates 2 Short satellite observation time causes that ambiguity can t be fixed Solution You can delete the observation data of these Satellites or exclude these Satellites from baseline process to ensure the baseline process quality 3 Too much cycle slips Solution If some satellites have big slips in the same time span you exclude this
60. tics Office Tools sp3 download manager O Select Tools Precise Eph SP3 from the main menu 53 9 5 Tool CGOffice User Guide Untitled HCEphDLTool Parameter Operate No Address File Name File Type Ephemeris Type Clock Error Type Status Information Figure 9 4 Ephemeris Download Tool 2 Select Parameter Settings from the main menu the Option dialog will appear If necessary edit the options Options Parameters Start 7 26 2013 End 7 26 2013 DownLoad Link cddis gsfc nasa gov Storage Path CACGOUGS Ephemeris Type Ultra rapid Ephemeris _ Rapid Ephemeris _ Final Ephemeris Clock Error Type Ultra_rapid Clock Error _ Rapid Clock Error Final Clock Error Cancle Figure 9 5 Ephemeris Download settings 3 Select Operate Start Downloading from the main menu to download ephemeris HCN Data Manager HCN Data Manager is used to edit the station name Antenna Height Antenna type and Measured Type of HCN file imported To open HCN Data Manager Do one of the following O Select Start All Programs CHC Geomatics Office Tools HCN Data Manager 54 9 6 Tool CGOffice User Guide O Select Tools HCN Data Manager from the main menu O Select Convert to Rinex from the Project bar se HCH Data ete HEN File Imported Station Mame Measure To Figure 9 6 HCN Data manager RINEX Converter Tool RINEX Converter Tool is used to convert CHC HCN format d
61. time span from baseline process If there are only some specific satellites have big slips you can exclude these satellites from baseline process 4 Error excessive caused by lonosphere or troposphere Solution 1 Enlarge the elevation mask But it is not always effective 2 If the data is dual frequency you can select LC model 3 Modify the correct model of lonosphere or troposphere Reprocess baseline When you distinguish the factor impacting the baseline process result you can reprocess the baseline by changing the baseline process parameters or edit the observation data in the observation and residual map Baselines te Repeated Line Observation and Residual Map ememr gt N B2 219428212F hes gt ea 219428212F hes gt p4 219428212F hes gt B5 QH100212F hes gt _ B6 QH100212F hes gt B7 QH100212F hes gt B8 QH100212H hes gt B9 QH100212H hes gt C gt B10 QH100212H hes gt _ B11 QH100212H hes gt B12 QH101212F hes gt B13 QH101212F hes gt B14 QH1012129 hes gt B15 QH1012129 hes gt _ B16 QH101212 hes gt 1 B17 QH1012129 hes gt B18 QH102212 hes gt B19 QH102212 hes gt B20 QH102212 hes gt EZ De21 0H1032123 he5 gt FAA EN NPA N AT 1 gt v GEL NY NO ge DNA 10Minutes cell Phase Sum lt B1 gt Total Epoch 155 Sample 89 Sec L1 Fixed ratio 1 51 rms 0 0318 Figure 6 9 Baseline observation data and r
62. ts in the network Multipath Interference similar to ghosts on a television screen that occurs when GPS signals arrive at an antenna after traveling different paths The signal traveling the longer path yields a larger pseudorange estimate and increases the error Multiple paths may arise from reflections from structures near the antenna Network adjustment If redundant observations are available they can be used to improve the results and to investigate for reliability The network adjustment computes coordinates that are optimized by the method of least squares Ratio Processing The best ambiguity set found is compared to the second best A quality criterion for the best ambiguity set is the ratio between the weighted residuals for this solution and the second best solution This ratio should be above a given value for C to define the ambiguities as fixed and the baseline as accepted green If the ratio is below this value results will not be accepted yellow or red Single Point Positioning Single Point Positioning is an independent recalculation of the coordinates for the point selected This recalculation is based on a single observation file Single Point Positioning is useful if you want to estimate positions without reference They may improve accuracy with respect to the code positions Single Point Positions have an accuracy of 10 m if S A is disabled S A effects if any are not reduced 61 2
63. u can see the Adjustment Report 7 4 Results Click Adjustment Report option CGO automatically generates reports from the type of adjustment Select File Export from the main menu and you can export the project summary report gt met e eege 1 Adjustment Settings 2 Adjustment Statistics 3 Control Points Network Adjustment Report 4 Free Adjusted 2013 7 31 30 Coordinates 4 1 Baselines Input in WGS84 User Name YANGGUOHAO1 Date amp Time 11 04 03 2013 07 31 4 2 Adjusted Baselines Project Datum wos84 E Geoid Model in WGS84 Project Name Transverse Mercator Projection Zone Distance Units Meters 4 3 Adjusted Geodetic Height Units Meters Coordinates in WGS84 4 4 Adjusted ECEF 1 Adjustment Settings Coordinates in WGS84 4 5 Adjusted Grid Coordinates and Height in Local Basic Parameters Ellipsoid Name WOS84 System l Major Axis a 6378137 0000m 46 Coordinate Flatiening Reciprocal 1 f 298 2572236 Change 4 7 Error Ellipse Projection Parameters Projection Method Transverse Mercator Projection Projection Scale 1 0000 Projection Height 0 0000m Original Latitude 0 00 00 00000 N Central Meridian LO 123 00 00 00000 E North Additive Constani n 0 0000m East Additive Constani e 500000 0000m IK Figure 7 10 network adjustment report CCC 45 8 Reports 8 1 8 1 1 8 1 2 Tool CGOffice User Guide CGO supports exporting the reports of Baseline processing Loop Closure
64. u may access the module s most commonly used functions with the click of a mouse button A toolbar consists of one or more tools Toolbars are separated by vertical lines A tool is a shortcut to frequently used menu commands A toolbar button displays the same icons as the respective menu command Bsu BB v U wa SS H Figure 2 4 Toolbars 1 New Tool Create a new project 2 Open Tool Open a project 3 Save Tool Save a project 4 Import Tool Import data 5 Export Tool Export results 6 Process Chosen baseline Tool Process baselines Selected 7 Process all baselines Tool Process all the enabled baselines 8 Adjustment Tool Do network adjustment 9 Select tool Selects one or more objects shown on the map 10 Grabber tool Shifts the map as instructed The map shift directly results from the length and orientation of the segment you drag on the map 11 Zoom In Zoom in on the area where you click or drag 12 Zoom Out Zoom out from where you click or drag 13 Full Screen Adjust the map scale so that all the visible objects present on the map can be seen 14 Grid Show the grid of the map Project Bar The Project bar consists of named groups that list shortcuts to commonly used tasks in the CGO software Each shortcut is available in a menu To quickly access a task 1 Click a shortcut on the Project bar 2 Click a group to move to a different set of shortcuts 15 2 6

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