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DISCOVER SB Software

1. 4 41 4 3 2 Port Parameters 07 7 00040000000 4 42 LAS 4 42 5 5 5 1 3 DIAGNOSTIC 5 1 WR D ET cc 5 1 5 1 2 Frequency Plots And Raw Data Time Series 5 1 5 2 HARD DISK RESTORATION 4 4 0400000 5 5 6 CUSTOMER SERV ICE sassva ovsv e aS Ne br eE e aER Ee ERE Y PERS FUE S aU 6 8 Ol STATEMENT stessi t rena E tr Nep 6 8 6 2 RETURNED MATERIAL 0000 6 9 6 3 SOFTWARE SERVICE AGREEMENT SSA sese 6 11 DISCOVER SB SOFTWARE FIGURES Figure 2 1 Install Shield Windows Ue UNSER ES 2 1 2 2 Install Discover SB ke 2 2 Figure 2 3 License Agreement 2 0 2001 0442 4 6 0 00000000000000000000000004 3 2 2 Figure 2 4 1 Setup tates eat at dope RU pd eh 2 3 2 4 2 Setup WINGOW 2 3 Figure 2 5 Destination Location rr 2 3 Figure 2 6 Ready to 0 20 02402 00000000 100000000000000000004 2 4
2. eese nennen 1 1 11 2 Application sia i pO tede pA da i PEE PERDE Vs oae PUER PN RARE 1 2 1 2 SOFTWARE DISPLAY S 2 1 3 1 3 OPERATOR CONTROLS iiis deer EN Eo dees ERU MEER PEE REPE DEEP 1 4 2 DISCOVER SETUP is i disc ERUNAEEUS E RENDERE DURS SEN RYE S EREN DONE 2 1 Z2 INSTAXLA TION 25 Sanc eu DURER OE er RUD 2 1 2 1 1 Install Shield 2 1 2 2 DISCOVER SUB BOTTOM 00 2 5 3 3 7 3 1 GENERAL 3 7 3 2 OPERATOR TIN TER etude obe split Sra a EE 3 7 3 3 DISCOVER SB USER 3 7 3 3 1 Waterfall Display m c 3 8 Edgelech DISCOVER SB SOFTWARE CONTENTS 3 3 2 Wave Form do Arr T RUE 3 8 3 3 3 M in Status IO au DE NUR RR DU d CR A RDUM M bn 3 9 3 3 4 TOD ar A 3 9 33 3 PU DOWA MEDUS P 3 10 3 3 0 Using the iiaee Ea E ER Ei 3 11 33 7 Usin the Keyboarder enoei atn ss iq EARE TE NR 3 12 A3 Status Lights nfl comb OR pau rn enaren Eai anaE aE TERES 3 12 SONAR C
3. 0 1 to 1 5 Swell Filter Pings This will only be applicable if the swell filter is selected as the Heave Compensator As an alternative to a heave sensor a swell filter can be applied to the bottom track position and used to adjust the display and printout A value of 0 disables the swell filter THEORY OF OPERATION 3 17 Edgelech DISCOVER SB SOFTWARE Direct Path Removal From Direct Path Removal To Specifies a range for estimation and removal of the direct path signal The direct path is typically the acoustic direct path between the transducer and hydrophone sensors This can generate a repeatable constant pattern at the start of a data set which can be estimated and subtracted out End of range for direct path estimation and removal Trace Avg Samples Time constant for low pass filter used to estimate the direct path Direct Path Removal Enable When enabled the estimated direct path is subtracted from the sonar data prior to displaying in the waterfall Hold Current Value When checked the calculated direct path is held fixed when not checked the signal is continuously estimated Trace repeat Factor When greater than 1 each ping of data is repeated the specified number of times on the waterfall display This is useful for a close up inspection of the data but not recommended for normal operation Event Mark Samples Specifies the length of event ma
4. Activity Light Green POWER System has Power Solid System Ready Green RUNNING Blinking System is Transmitting pinging Red CHECK SYSTEM Blinking System Can Not Run Solid Topside Communication Inactive Amber CAUTION Blinking Error Detected Operation Still Possible Table 3 1 Status Lights Definitions THEORY OF OPERATION 3 12 A Edgelech DISCOVER SB SOFTWARE 3 4 SONAR CONTROLS sonar controls are accessible by clicking the Control Panel Icon or by selecting Control Panel in the Sonar Menu 3 4 1 SONAR CONTROL Options Logs Misc Record Playback Image Capture Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Transmit Control Pe uH Pulse Power 0 100 Ping Rate R ange Triggering Acquire Made Delay ms Initial Depth in Meters Master 1 N Depth in Meters to D Converter Gain Actual Ping Rate 1 000000 Rate 1 000000 PingNum 41 222 Actual ADC Gain 16 Signal Meter 12075 Item Description Sub bottom Sonar On This button turns the sonar system ON or OFF If the system is recording when the sonar is switched off the archiving is paused Turning the sonar back ON will also restart the recording to the same file Note To start a new file the recording must be stooped not the sonar Pulse Currently selected transmit pulse Each vehicle has a set of 3 or more pulses Refer
5. Edgelech DISCOVER SB SOFTWARE yyyyy yyy Degrees Minutes decimal 3 fixed digits of degrees 2 fixed digits of minutes and a variable number of digits for decimal fractions of minutes Leading zeros always included for degrees and minutes to maintain fixed length b E for East Longitude or W for West Longitude hhmmss ss of position fix Hours Minutes Seconds decimal 2 fixed digits of hours 2 fixed digits of minutes 2 fixed digits of seconds and a variable number of digits for decimal fractions of seconds Always pad with leading zeros This field is optional A Status Single character field A Yes Data Valid Warning Flag Clear V No Data Invalid Warning Flag Set GXY Geographic Position X and Y Coordinates X and Y coordinates of the present vessel position time of position fix and status GXY xxxxxx xxx a yyyyyy yyy b hhmmss ss hh CR LF xxxxxx xxx Double floating point numeric may have leading negative sign Represents horizontal axis of plane X coord a Character label for X Must be valid ASCII character but value is ignored yyyyyy yyy Double floating point numeric may have leading negative sign Represents horizontal axis of plane Y coord b Character label for Y Must be valid ascii character but value is ignored hhmmss ss of position fix Hours Minutes Seconds decimal 2 fixed digits of hours 2 fixed digits of minutes 2 fixed digits of seconds and a variable number of di
6. Requires the most disk space Select which program features you want installed Recommended for advanced users lt Back Next gt Cancel Figure 2 5 2 Setup Window EdgeTech Install V1 00 Discover SB 3200 XS V3 41 InstallShield Wizard x Choose Destination Location Select folder where setup will install files Install EdgeT ech Install V1 00 Discover SB 3200 XS V3 41 to C Edgetech Figure 2 6 Destination Location Window THEORY OF OPERATION 2 3 Eggelech DISCOVER SB SOFTWARE EdgeTech Install V1 00 Discover SB 3200 XS V3 41 InstallShield Wizard x Ready to Install the Program a i The wizard is ready to begin 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 Install Cancel InstallShield Wizard Complete The InstallShield Wizard has successfully installed EdgeTech Install 1 00 Discover SB 3200 X5 V3 41 Click Finish to exit the wizard Figure 2 7 Install Complete Possible error message If Discover SB 15 already on the machine when Install shield 15 opened it will display the following message This window 15 for uninstalling removing or repairing the Discover SB program THEORY OF OPERATION 2 4 A Edgelech DISCOVER SB SOFTWARE EdgeTech Install V1 00 Discover SB 3200 XS V3 41 InstallShield Wizard Welcome Repair or remove the program
7. This agreement DOES NOT address CUSTOMER SPECIFIED modifications and or enhancements which may be ordered separately CUSTOMER SERVICE 990 0000026 1000 2 1 6 12 Eggelech DISCOVER SB EdgeTech software upgrade is meant for the sole use of the clientele which have purchased a system within a year or have Software Service Agreement Any reproduction or file sharing is strictly prohibited CUSTOMER SERVICE 990 0000026 1000 2 1 6 13
8. Eggelech DISCOVER SB 1 Open up the X STAR computer and remove its hard disk Remove the 40 pin data cable and power connector from the disk 2 Jumper the new hard disk as a master On most systems the CD ROM drive is jumpered as a Slave and shares the same cable as the hard disk 3 Insert the new hard disk into the X STAR and connect the power and data cables The red stripe on the data cable indicates pin 1 on the 40 pin cable Pin 1 is normally closest to the power supply connector 4 Make sure that the CD ROM drive is still connected 5 Insert the EdgeTech bootable CD ROM then turn the system ON 6 The system should boot from the CD ROM and display a menu of choices To build a bootable system you must do menu items 1 Partition disk 2 Format disk and 3 Restore in this order You will be prompted for the type of disk you are building during menu item 3 Restore 7 Under Menu item 1 Partition Disk Create Logical DOS Enable Large Disk Support Make Partition Active Reboot 8 Menu item 2 Format 9 Menu item 3 Restore 10 Insert Windows 2000 CD ROM Reboot Watch for message Press Any Key to boot from CD Boot into Windows 2000 Set up Once Set Up has launched select Repair Window Installation using Console CUSTOMER SERVICE 990 0000026 1000 2 1 5 6 EdgeTech DISCOVER SB Log on to 1 partition No Password Type fixboot C lt CR gt Type Y to confirm new boot sector
9. Type exit Remove Windows CD ROM and reboot 11 The system is now ready for operation with the new disk NOTES Any software upgrade mailed on a CD Rom emailed or downloaded will have to be re installed separately CUSTOMER SERVICE 990 0000026 1000 2 1 5 7 Eadgelech DISCOVER SB 6 CUSTOMER SERVICE 6 1 STATEMENT All equipment manufactured by EdgeTech is warranted against defective components and workmanship for a period of one year In order to be able to serve you faster please address any concerns related to the X STAR system to the plant in Milford Massachusetts If the situation requires sending equipment back for repair please refer to the following page for detailed shipping procedures Our customer service personnel in both plants enjoy hearing from the people who use our products Your experience with our products is a valuable source of information that we will use to continuously improve our products We encourage you to contact or visit us to discuss any issues related to our products fdgelech sales EdgeTech com http www EdgeTech com PO Box 850 4 Little Brook Road West Wareham MA 02576 Tel 508 291 0057 Fax 508 291 0975 CUSTOMER SERVICE 990 0000026 1000 2 1 6 8 Edgelech DISCOVER SB 6 2 RETURNED MATERIAL AUTHORIZATION It is necessary to obtain a Returned Material Authorization RMA number prior to returning any equipment to EdgeTech This will help Edge
10. FCC rules designed to provide reasonable protection against such interference when operated in a commercial environment Operation of this equipment in a residential area may cause interference in which case the user at his own expense will be required to take whatever measures needed to correct the interference It is the user s responsibility to verify that the system complies with the applicable FCC emission limits High Voltage may be present in the tow fish power amplifier and the topside processor Use caution when the electronics are removed from their containers for servicing Operation with improper line voltage could cause serious damage to the equipment Document 990 0000026 1000 Rev 2 1 111 Edgelech DISCOVER SB SOFTWARE CONTENTS FORWARD oeae i WARRANTY 4 V e T ii WARNINGS meree e E E E E lii TABLECGCOPCONBENTISiieconetvp cse bebe iv vii TABLE OF TABLES 2 eivieia d niis poi enee iea i ane ee ne east das viii QUALITY RR RS ix 1 INTRODUCTION eesseessecssscossosssosssossecsssocsesosesssessseesseeso 1 1 LI OVERVIEW 1 1 1 1 1 Discover Sub Bottom
11. Network Navigation Printer Alerts Logs Misc Record Playback Image Capture Record Format SEG Y Options i Dir CAEdgeTech Data s200 xs File Max Size MB Creates a New File when This Size is Exceeded 0 gt Disabled PER File Size 0 0 MB Free 285023 MB Sonar 0 Display 0 Storage Format Warning Please note that by using the SEG Y format some information will be lost Please verify that this format meets your requirements Options Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Logs Misc Record Playback Image Capture Record Format Standard SEG Y SEG Y Options 29380 v v Create New File if Record Size Changes IBM Floats 1 EBCDIC IEEE Floats 5 ASCII Dir CAEdgeTect Date 3200 8 File Max Size MB Creates a New File when This Size is Exceeded 0 gt Disabled 600 IDLE_R File Size 0 0 MB Free 285089 MB Queues Sonar 0 Display 0 Item Description Record When pressed begins recording data to the record file The record file name includes a sequence number which is incremented when recording begins Stop When pressed stops recording the file is closed and the next time the record button is pressed a new file will be created THEORY OF OPERATION 3 27 Edgelech DISCOVER SB SOFTWARE File Bas
12. OPERATION 4 41 Edgelech DISCOVER SB SOFTWARE aa Dummy characters to start the Address Field e g GP not used by EdgeTech products bbb Sentence Formatter Mnemonic code identifying the data type and the string format of the successive fields 74 2 Field Delimiter Starts each field except Address and Checksum fields If it is followed by a null field it is all that remains to indicate no data in the field Data Sentence Block Data field s preceded and separated by delimiters er 2A Optional Checksum Delimiter hh Optional Checksum Field lt CR gt lt LF gt Terminates Sentence 4 3 2 PORT PARAMETERS Interface RS 232C Com Port 2 Baud Rate 4800 Data Bits 8 Start Bits 1 Stop Bits 1 Parity none Handshaking none 4 3 3 INPUTS The following are the approved NMEA sentences recommended for use with the DISCOVERY based systems GLL Geographic Position Latitude Longitude Latitude and Longitude of the present vessel position time of position fix and status GLL xxxx xxx a yyyyyy yyy b hhmmss ss A hh lt CR gt lt LF gt XXXX XXX Degrees Minutes decimal 2 fixed digits of degrees 2 fixed digits of minutes and a variable number of digits for decimal fractions of minutes Leading zeros always included for degrees and minutes to maintain fixed length a N for North Latitude or S for South Latitude THEORY OF OPERATION 4 42
13. is displayed in the top window The A D capture sequence begins immediately prior to the start of the Transmit pulse for the channel x 0 The entire transmit pulse which is unavoidably coupled into the receive channel is visible in the early part of the display Following the transmit pulse 8 3msecs in this case the lower amplitude received echo data is visible The A D converter is overloaded during the Transmit pulse by the extremely large amplitude signals injected into the receiver For this reason the signal may appear to collapse slightly during the Transmit pulse but the display should show 32767 and 32767 amplitudes during Transmit interval See the figure below for raw data display where the Transmit power for the channel 15 set to zero In this case transmit power for the side scan channel has been set to zero in the SSL control tab The Power Amplifier turn on and turn off transients are still visible in the time record and indicate that the power to the amplifiers is good and that the power amplifier on off control is working correctly The absence of transmit energy would indicate a failure in the transmit signal generator if the power were not intentionally set to zero 52 HARD DISK RESTORATION PROCEDURE The Discover X STAR has an IDE hard disk A disk archive is saved on the CD ROM supplied with your system To build a new disk follow these procedures CUSTOMER SERVICE 990 0000026 1000 2 1 5 5
14. the mouse arrow in the oscilloscope waveform envelope display at the position of the seafloor the tracking cursor can be reset to the seafloor Clicking and dragging the left THEORY OF OPERATION 3 11 Edgelech DISCOVER SB SOFTWARE cursor in the area around the pick will set the tracking window width distance between the two blue lines By clicking the mouse arrow on the oscilloscope waveform envelope display the vertical red threshold line can be adjusted to track either strong or weak reflections NOTE The tracking algorithm searches below the upper blue line for the seafloor by comparing each envelope value with the threshold The seafloor is defined as the first point below the upper blue line that the envelope exceeds the threshold If none of the envelope values exceed the red line threshold the tracking cursor horizontal red line assumes the seafloor depth has not changed and the cursor horizontal red line does not move By clicking and dragging the arrow in the main data window you can dynamically adjust the zoom factor A double click will zoom out to maximum 3 3 7 USING THE KEYBOARD Discover SB functions and features were designed to minimize the use of a keyboard The keyboard is mainly used for entering file names and annotations Most commands can be executed from the control panel via the trackball 3 3 8 STATUS LIGHTS LED Color Label Definition Amber HARD DRIVE H D D
15. the warranty period 15 forwarded to Seller and the directions received for properly identifying items returned under warranty are followed iv The return notice authorizes Seller to examine and disassemble returned products to the extent Seller deems necessary to ascertain the cause for failure The warranties expressed herein are exclusive There are no other warranties either expressed or implied beyond those set forth herein and Seller does not assume any other obligation or liability in connection with the sale or use of said products Any product or service repaired under this warranty shall be warranted for the remaining portion of the original warranty period only Equipment not manufactured by EdgeTech is supported only to the extent of the original manufacturer s warranties Document 990 0000026 1000 Rev 2 1 ll Eggelech DISCOVER SB SOFTWARE WARNING This equipment contains static sensitive devices that are extremely sensitive to static electrical charges which may be developed on the body and the clothing Extreme care should be taken when handling these devices both in and out of the circuit board Normal handling precautions involve the use of anti static protection materials and grounding straps for personnel This equipment generates uses and can radiate radio frequency energy and if not installed properly may cause interference to radio communications It has not been tested to compliance to the appropriate
16. this product accurately and completely However EdgeTech assumes no liability for errors or for any damages that result from use of this manual or the equipment it accompanies EdgeTech reserves the right to upgrade features of this equipment and to make changes to this manual without notice at any time Since clear and concise documentation is important for successful operation and understanding of the equipment we invite you to contact us with any questions or comments so that we may enhance this manual Document 990 0000026 1000 Rev 2 1 1 4 Edgelech DISCOVER SB SOFTWARE WARRANTY All equipment manufactured by EdgeTech is warranted against defective components and workmanship for a period of one year after shipment Warranty repair will be done by EdgeTech free of charge Shipping costs are to be borne by the customer Malfunction due to improper use is not covered in the warranty and EdgeTech disclaims any liability for consequential damage resulting from defects in the performance of the equipment No product is warranted as being fit for a particular purpose and there is no warranty of merchantability This warranty applies only if i The items are used solely under the operating conditions and in the manner recommended in Seller s instruction manual specifications or other literature il The items have not been misused or abused in any manner or repairs attempted thereon iii Written notice of the failure within
17. to section 3 6 for systems with multiple vehicles Pulse Power Pulse power level 0 to 100 Pulse Rate Range Specifies the ping rate in hertz or ping range in meters Triggering Mode See_Triggering and Coupling section Triggering Delay in ms Delay from the trigger event to when the sonar pings and begins collecting data Triggering 1 N Trigger decimator A value of 1 will ping on every trigger 2 will ping on every other trigger etc Acquire Initial Depth in Sets the data window Samples before this value are THEORY OF OPERATION 3 13 4 Edgelech DISCOVER SB SOFTWARE Meters discarded by the Sonar to reduce network bandwidth This can be used to exclude the water column from the displayed and stored data Acquire Depth in Meters Sets the data window If zero indicates that all data for the specified ping rate range are returned ADC Gain Analog to Digital Converter Gain AGC Enable Automatic Gain Control Recommended Enable Sonar Control When checked parameters on this page are sent to the Sonar when they are modified When not checked the Discover X STAR is in passive observer mode In this case it will receive data but not send sonar commands Status Line Displays the actual current status as reported from the sonar program 3 4 2 SONAR CONTROL PAGE 2 Options Logs Record Playback Image Capture Sonar Control Sonar Control Page
18. 00 and Windows XP operating systems The data and control connections to the Discover SB program are entirely through TCP IP connections The data and control connections to the Discover SB program are entirely through TCP IP connections allowing the Discover SB program to run executed on any Windows 98 NT 2000 based computer that can establish a TCP IP connection to the EdgeTech Full Spectrum sonar system This connection may include but is not limited to computers connected directly using a crossover cable computers connected via a standard Ethernet hub or computers connected using the EdgeTech STARMUX digital telemetry link and FS IU topside Interface Unit Discover SB can also be run on the actual EdgeTech Full Spectrum sonar system computer INTRODUCTION 990 0000026 1000 2 1 1 1 Edgelech DISCOVER SB SOFTWARE EdgeTech Full Spectrum sonar systems employ advanced Chirp technology to obtain high resolution low noise data records EdgeTech s advanced Chirp technology employs long duration wide band frequency modulated transmit pulses Return sonar echo data is processed to remove the FM carrier and produce high resolution images of the echo field Discover SB allows monitoring of this normal de chirped sub bottom data as well as raw chirped data This latter data type is often useful for diagnostic purposes For compatibility with other EdgeTech products the Discover SB program interfaces to a second program t
19. 2 Display Display Page 2 StatusBar Network Navigation Printer Alerts Multiping Controller Altitude Source Selection i Source Y Algorithm No Mutiping Disabled Bottom Location Ping Rate Hertz Estimated Altitude In Meters Watercolumn Depth Per Ping Meters Reflection Coef Calibration foo SB Depth Per Ping Meters Coef Current Value in DB Bo c Update Interval in Seconds Max Pulses In Wat ax Pulses In Water E Pings In Water 0 Altitude 0 0 Rate 1 0 Update 0 When not checked topside is a slave display only Item Description Multiping Controller When enabled the Discover changes the ping rate and Algorithm data window to support multiple pings in the water A valid altitude source must be available to use the multiping controller Please review the appending on Supporting Multiple Pings in the Water for details of usage of these options Bottom Location Ping Rate Ping rate to use in bottom location mode This is useful to Hertz lock onto the bottom when the altitude source is the bottom tracker before enabling multiping mode Watercolumn Depth Per In multiping mode specifies the amount of data to collect THEORY OF OPERATION 3 14 A Edgelech DISCOVER SB SOFTWARE Ping Meters in the watercolumn before the bottom SB Depth Per Ping Meters In multiping mode specifies the amount of data to cllect after the bottom Update Interval in Se
20. CTION 990 0000026 1000 2 1 1 4 A Edgelech DISCOVER SB SOFTWARE 2 DISCOVER SETUP 2 1 INSTALLATION Discover Sub Bottom consists of a single executable file Discover Sub bottom exe and a standard Windows initialization file initialization file stores user options and configuration parameters If the file does not exist then default values are used and it will be created when the current settings are saved or the program is exited Installation consists of copying the Discover Sub bottom exe executable to a suitable directory on the Windows PC e g C Edgetech Topside after the Install Shield has been run 2 1 1 INSTALL SHIELD To install Discover Sub Bottom an Install shield must first be run open the Install shield and click next InstallShield Wizard Cancel Figure 2 1 Install Shield Window THEORY OF OPERATION 2 1 A Edgelech DISCOVER SB SOFTWARE EdgeTech Install 1 00 Discover SB 3200 XS V3 41 InstallShield Wizard amp Welcome to the InstallShield wizard for EdgeTech Install V1 00 Discover SB 3200 XS v3 41 The InstallShield Wizard will install EdgeT ech Install V1 00 Discover SB 3200 X5 V3 41 on your computer continue click Next j Cancel Figure 2 2 Install Discover SB Please read through the warranty To continue running the Install shield click I accept the license agreement EdgeTech Install 1 00 Discover SB 3200 5 V3 41 InstallShield Wizard
21. DISCOVER SB Software DISCOVER SUB BOTTOM SOFTWARE USER S MANUAL Revision 1 0 May 2007 Edgelech Email info EdgeTech com Web http www EdgeTech com 1141 Holland Drive Suite 1 Boca Raton 7 USA Tel 561 995 7767 Fax 561 995 7761 Eggelech DISCOVER SB SOFTWARE FORWARD This manual is intended to provide the user with an understanding of the operation and care of the EdgeTech Model 3200 XS system and towed vehicles General sub bottom profiling information may be found in papers published in the Journal of the Acoustical Society of America Offshore Technology Conference IEEE Journal of Oceanic Engineering by L R LeBlanc and S G Schock The information figures and specifications in this manual are proprietary Materials in this manual are issued in strict confidence on condition that it not be copied reprinted or disclosed to a third party either wholly or in part without the prior written consent of EdgeTech To quickly get familiar with the system connect the components as described in the installation section and follow the steps described in the First Deployment Section Although this manual has been revised to cover the latest operational features of X STAR some features may be periodically upgraded Portions of this manual such as parts lists schematics and test features are subject to change and should be used for reference only EdgeTech has made every effort to document
22. EdgeTech format or SEG Y format that is a generic open format allowing data exchange Reflection Coefficient Since the EdgeTech sonar is linear the measured refection coefficient can be used to identify the type of material i e sand clay mud etc on the bottom A graph of the refection coefficient is displayed in real time Navigation One of the computer s RS232 ports can be configured to receive navigation data from a navigation computer or from a GPS A NMEA 0183 string can be recorded through this interface Navigation information is stored in the trace header of the sonar data The navigation message is displayed on the screen and is printed on the thermal printer Interactive screen interpretation Using the mouse the operator can get information on each ping Other Software features Echo strength Layer depth Sonar return number record number file number mark number Event Fix marks Frequency data analysis for advanced system diagnostics Sonar Diagnostics INTRODUCTION 990 0000026 1000 2 1 1 3 A Edgelech DISCOVER SB SOFTWARE 1 5 OPERATOR CONTROLS Two stage TVG Bottom tracking Display gain Preamp gain Horizontal and vertical zoom Waveform display of individual acoustic return Direct path suppression Heave removal e Swell filter e Display annotation amp Event mark e Pulse selection rate and power e A D delay e Printed and recorded media INTRODU
23. Figure 2 7 Install Complete A 2 4 Figure 2 3 Repair or Remove WIDdQW sou eer Etpe vet pa s d 2 5 Figure 2 9 Discover Main aden oad utet ii edi o 2 5 Figure 2 10 Insert Password WIBdOW essei iater d EPOR PRI 2 6 Figure 3 2 Sonar Control Error Bookmark not defined Figure 3 2 SB Control Page 2 Gsm curs ipee struts Error Bookmark not defined Figure 3 2 SB Control Page 2 eter Error Bookmark not defined Figure 5 1 Raw Graphic display o her oor erp pu e Ne n pet 5 3 A Edgelech DISCOVER SB SOFTWARE TABLES Table 3 1 Waterfall Display occ ett RE oH ERI IN side 3 8 Table 3 2 Wave Form Display Fen tree eaae SE tuni ub 3 9 Table 3 3 Main Stat s AN sai ssi sates eat queis nde ri trei Fev sad up edv Rede 3 9 Table Mic de c M 3 10 Table 3 5 Pull Down MENUS ien gon rie exe eodd e Fein tiis Pl era di pus Fe pe Fi SR 3 11 Table 3 1 Status Lights 3 12 Edgelech DISCOVER SB SOFTWARE Quality To our customers Thank you for purchasing one of our products At EdgeTech it is our policy to provide high quality cost effective products and support services that meet or exceed your requirements to deliver them on time and to continuously look for ways to improve We all take pride in
24. License Agreement Please read the following license agreement carefully EDGETECH SOFTWARE LICENSE AGREEMENT AND LIMITED WARRANTY SOFTWARE LICENSE AGREEMENT By opening this package you agree to be bound by the terms of this Agreement which include the software license and the limited warranty This Agreement applies to you and any subsequent licensee of this software program If you do not O I de not accept the terms of the license agreement lt Back Nest Cancel Figure 2 3 License Agreement Window The Install shield must set up Discover on the computer If Complete is selected Discover SB and all affiliated files will be installed on the drive under the EdgeTech folder If this is not convenient select Custom and place Discover SB where it is easily accessible THEORY OF OPERATION 2 2 Edgelech DISCOVER SB SOFTWARE EdgeTech Install V1 00 Discover SB 3200 XS V3 41 InstallShield Wizard X Setup Type Select the setup type to install Please select a setup type 18 All program features will be installed Requires the most disk space Custom A Select which program features you want installed Recommended for advanced users Figure 2 4 1 Setup Window EdgeTech Install V1 00 Discover SB 3200 XS V3 41 InstallShield Wizard x Setup Type LR Select the setup type to install P Please select a setup type Complete All program features will be installed
25. ONTROLS NT 3 13 SAA Somat 3 13 2 12 Sonar Control Pase Jason Ret Ro Rad ca 3 14 c 3 15 3 44 Display oM 3 17 o ES ME ndr RR Rr T 3 19 EE Ml co cer 3 20 34 7 AUC E 3 21 fr Musso 3 22 pr ME I m 3 24 Sr MP T LT 3 25 3 26 3 27 3 413 IPIS aes 3 29 Image C ER 3 30 4 THEORY OF OPERATION 4 32 41 bid bec f bci ER ERROR PR ERE 4 32 4 1 1 Edge Teen Native File 4 32 4 1 22 Standard SEG Y 4 32 4 1 3 Raw Data ccseseracesacccacucsnceauesanrdaconadpeneesnecesaencateaueearexeesadnenss 4 39 Edgelech DISCOVER SB SOFTWARE CONTENTS AL Sonar Data Types rroaren s CE Ede prr du dex Dd DN UDIN MM TEE 4 39 AAS Palette File Bormat uisi eere res ri ee eet P 4 40 4 2 TRIGGERING AND 0 1 1 1 eee sene nene 4 40 4 3 NAVIGATION cits E Eri UE EPA RUE RD pe REN TR 4 41 4 3 1 NMEA Approved Sentence SITUCDUFE eid tt
26. SB SOFTWARE The main display is split into sections two ways horizontally and two vertically Each window can be resized by moving the mouse pointer to its splitter then moving the mouse while holding down the left mouse button 3 3 1 WATERFALL DISPLAY The data in the waterfall display is cached Using the mouse a region can be selected to Zoom in or out on the data or the scroll bars can be used to pan around inside the data set Moving the mouse over a sonar data record in the waterfall will display information specific to that record in the status bar Item Description Waterfall Data Displays the intensity of sonar return data The display is cached so that data can be repainted when zooming or panning and statistics of the data can be displayed Mouse Zoom Out Click and release the left mouse button to zoom out on the display so that all data 15 displayed Mouse Zoom In Press the left mouse button and drag to select a zoom in region Scroll Bar Scroll up or down to pan around inside the waterfall Mouse Current Statistics Move the mouse pointer to a ping and the selected status and Information information will be displayed in the main status bar Dashed Line A dashed line on the waterfall indicates that an event mark or annotation is present at that position Green Line A green line is drawn 1 display unit above the current bottom track position Line Color and offse
27. Tech in recognizing your equipment when it arrives at our receiving dock and to assist us in tracking your equipment while it is at our facility The material should be shipped to the address indicated above Please refer to the RMA number on all documents and correspondence as well All returned material must be shipped prepaid Freight collect shipments will not be accepted The following steps apply only to material being returned from outside the Continental United States These steps should be followed carefully to prevent delays and additional costs 1 All shipments must be accompanied by three copies of your proforma invoice showing the value of the material and the reason for its return if the reason is for repair it must be clearly stated in order to come through customs faster and without duties being charged Whenever possible please send copies of original export shipping documents with the consignment 2 If the value of the equipment is over 1000 the following Shipper s oath must be sent with the invoice This oath can be typed on the invoice or on a separate letterhead I declare that the articles herein specified are the growth produce or manufacture of the United States that they were exported from the United States from the port of on or about that they are returned without having been advanced in value or improved in condition by any process of manufacture or any other means and th
28. Welcome to the EdgeTech Install V1 00 Discover SB 3200 5 V3 41 Setup Maintenance program This program lets you modify the current installation Click one of the options below Repair Reinstall all program features installed by the previous setup O Remove E Remove all installed features Figure 2 7 Repair or Remove Window 2 2 DISCOVER SUB BOTTOM RESTRICTED If Discover Sub Bottom program is restricted this means that you are running an unlicensed version of Discover Sub Bottom To register go to the help drop down menu and click on Password Maintenance Contact EdgeTech technical support at info EdgeTech com and include your Machine ID number The Machine ID number will be in the upper left quadrant of the Insert Password Window as seen in Figure 2 10 EdgeTech will provide a personalized password machine specific EdgeTech Discover Sub Bottom 3 42 RESTRICTED File Sonar View 22 79 03Gain gt About Discover D 4 x mj X amp 0 0kHzOms SBO MO A RC 0 0 Password Maintenance NAV PB NETPB 988 Figure 2 9 Discover Main Screen THEORY OF OPERATION 2 5 Edgelech DISCOVER SB SOFTWARE THEORY OF OPERATION Figure 2 10 Insert Password Window 2 6 A Edgelech DISCOVER SB SOFTWARE 3 OPERATIONS 3 1 GENERAL The purpose of this section 15 to provide general information on the operation of the Discover SB software It is not intende
29. a second or faster THEORY OF OPERATION 4 46 Edgelech DISCOVER SB 5 TROUBLESHOOTING The Discover SB program has build in diagnostics to assist in determining the source of any acoustic anomaly Some typical diagnostic tests are described below Each use requires somewhat different parameter settings It is recommended that the troubleshooting configuration be saved in a parameter file different that the ones used for acquisition 5 1 DIAGNOSTIC 5 1 1 RUB TEST A rub test provides a rough check of operation of a sub bottom hydrophone When performing a rub test it is recommended that you display envelope data format To perform a rub test Start the Discover SB Set the appropriate settings in the desired sonar control tab and turn pinging on Data should begin scrolling on waterfall display Normalize the display Set the gain between 0 3dB Rub appropriate sensor You should see increased signal return You should perform a rub test at least once when the system is operating properly so that you are familiar with the expected display behavior when the system is rubbed 5 1 2 FREQUENCY PLOTS AND RAW DATA TIME SERIES ANALYSIS The ability of the Discover SB program to request and display raw data directly from the ADC converter is invaluable in diagnosing many potential failure modes Raw data as opposed to processed and chirped data allows direct interpretation via scope li
30. at no drawback or allowance has been paid or admitted hereof Signed CUSTOMER SERVICE 990 0000026 1000 2 1 6 9 Eggelech DISCOVER SB 3 If there is more than one item per consignment a packing list must accompany the shipment It is acceptable to combine the proforma invoice and packing list as long as the contents of each carton are clearly numbered and identified on the invoice 4 Small items can be shipped prepaid directly to EdgeTech by FedEx DHL UPS Airborne etc 5 If the equipment is the property of EdgeTech formerly EG amp G Marine Instruments Division please insure for full value 6 Fax invoice packing list and copy of airway bill to EdgeTech upon shipment CUSTOMER SERVICE 990 0000026 1000 2 1 6 10 Edgelech DISCOVER SB 6 3 SOFTWARE SERVICE AGREEMENT SSA Software maintenance is included free of charge for one year following purchase of an EdgeTech system The Software Service Agreement covers the following services that enable an EdgeTech customer to continue to receive software updates documentation and enhanced telephone fax and e mail support after the first year In addition customers with a current SSA receive a 10 discount on spare parts for the covered system Software Updates and Enhancements SSA customers receive regular new software releases along with any technical and user s manual changes NEW SOFTWARE RELEASES CONSIST OF Software enhancements that are n
31. ata to file Signal Level Cursor w Start of Tx Pulse Typ Tx Pulse sample counts End of Tx Pulse Transmit energy X axis cursor position readout in msecs Frequency scale Hz la ud chua us n m Cursor 130314 75 431 81 Curor position readout amplitude spectral level Cursor position readout Frequency in Hz Figure 5 1 Raw Graphic display 5 3 990 0000026 1000 2 1 CUSTOMER SERVICE Eggelech DISCOVER SB The above figure show a typical raw data display for a sidescan channel The left half of the graph display shows one thousand samples of the raw ADC analogue to digital converter output plotted as time vs amplitude on the X Y axes The right half shows a frequency analysis FFT of the time series in the top half The axes are Frequency Hz vs Amplitude x y This raw data display was obtained by first setting the sub bottom system to send raw data as opposed to de chirped envelope data Display Description Refer to figure above for item check box locations Channel Selector Edit Box Accessed using the mouse cursor Type in the desired data channel to display 0 SB sub bottom 2 SSL Side Scan Low Port 3 SSL Side Scan Low Starboard 4 SSH Side Scan High Port 5 SSH Side Scan High Starboard FFT in dB Check Box If checked displays the FFT amplitudes in dB a logarithmic display scale If unchecked displays ver
32. ate THEORY OF OPERATION 3 28 Edgelech DISCOVER SB SOFTWARE 3 4 13 PLAYBACK Sonar Control Sonar Control Page 2 Display Display Page 2 Status Network Navigation Printer Alerts Logs Misc Record Playback Image Capture Playback C Acquire Playback Auto Repeat Playback Rate 64 pi Wash demo LAKE WASHINGTON File DEMO NOV04002 jsf P Show Mark At File Start IDLE PB File D Lk Wash demoNLAKE WASHINGTONSDEMO NOVO4002jsf 0 0 of 109 5 MB Queues Sonar 0 Display 0 Item Description Playback When pressed begins playback of data from the playback file Stop When pressed stops playback Acquire Discover operates in two major modes Acquire which acquires data in real time and playback which plays back data previously acquired Turning pinging on will switch automatically to acquire mode Playback Second operating mode When the Playback button is pressed Discover is automatically switched to playback mode and real time data if present IS IGNORED Auto Repeat Continuously play back the same file for demo or analysis purposes When the end of file is reached the same file is reopened again if auto repeat is enabled File Current file name for playback Dir Base directory for playback Playback Rate Sets the playback rate in messages per second A message is normally a channel of data Show Mark at File Start Prin
33. cLatOrY Y Group Coordinate as defined in JSF Format 0 6 sgy gt sourceLongOrx Same as recLongOrX sgy sourceLatOrY Same as recLatOrY sgy gt sampleLength Samples in trace sgy gt deltaSample Sample interval in us sgy gt correlated Always 1 sgy gt sweepStart Start frequency sgy gt sweepEnd End frequency sgy gt sweepLength Sweep Length sgy gt sweepType Always 1 sgy gt aliasFreq Alias frequency 1 2 of sample rate sgy gt year Current year sgy gt day Current day sgy gt hour Current hour sgy gt minute Current minute sgy gt second Current second sgy gt timeBasisCode 2 for GMT 4 1 2 3 Binary Header The binary header structure is also listed below There is a single binary header at the start of every segy file We fill in the following fields in the binary header binHeader lineNum Incremented on each file THEORY OF OPERATION 4 34 A Edgelech DISCOVER SB SOFTWARE binHeader reelNum same as lineNum binHeader tracesPerRecord 1 binHeader samplesPerTrace Samples per trace If the operator changes parameters to cause a new value a new file is created binHeader samplesPerTraceOriginal Same as samplesPerTrace binHeader format 1 binHeader samplelIntervalus Sample interval in us binHeader sampleIntervalusOriginal Same as sampleIntervalus binHeader measurementSystem 1 binHeader cpdFold 1 binHeader traceSortCode lt 1 binHeader verticalSumCode 1 binHead
34. conds Interval at which the ping rate is updated when in multiping mode Max Pulses in Water Maximum number of concurrent pings in the water when multiping is enabled Altitude Source Selection Source of the altitude estimate used for multiping and other processing Estimated Altitude in Meters When the altitude source is Estimated Altitude this is the operator entered altitude used Reflection Coef Calibration value This is a value in tenths of a DB used to scale all data A new value is only applied when the Apply Changes button is pressed The calibration value is set for each pulse It should be selected such that a perfect reflector the air water interface yields the maximum value of O DB The reflection coef is the amplitude of the return at the peak near the bottom trackers current position 3 4 3 DISPLAY Options Logs Misc Sonar Control Sonar Control Page 2 Gain Control Gam DB 5 7 Display TVG DB 100MJ 16 41 MaxDB 80 4 Record Playback Image Capture Display Page 2 Status Bar Network Navigation Printer Alerts Bottom Tracker Current Bottom 51 8 4 Threshold 150 Search Range 23 Min Altitude so Max Altitude 0 Enable Tracker Time Constant in Pings 0 0 Trace Repeat Factor Horizontal Zoom 1 Vertical Zoom 1 8 4 Item Description Gain Gain in dB
35. creation of JPG images SHOULD NOT be done during real time acquisition Item Description Depth Indicator Enable to display a depth grid on the JPG image Distance Indicator Enable to display a distance grid on the JPG image New File Every Specify a non zero value to generate a sequence of JPG images This is important for a very long line Most JPG readers have problems with file sizes near or bigger than 1 MB in size Manual Speed Used to override the NMEA speed for the distance indicators Start and End Depth Used to create an image only for the specified altitude 1f in relative mode on the Display Tab or depth range if in absolute depth mode THEORY OF OPERATION 3 30 Edgelech DISCOVER SB SOFTWARE Ping Decimation For large lines a decimation factor greater than 1 can help to pack more into a single image This will of course reduce image resolution Sample Decimation For large lines a decimation factor greater than 1 can help to pack more into a single image This will of course reduce image resolution JPEG Quality Factor This is a value between 0 and 100 A value of 100 is perfect quality very poor compression A value of 0 is extremely poor quality Values between 20 and 80 tend to yield good quality and compression tradeoffs File Name File name of generated JPG file Begin Capture Start capturing trace data End Capture End capturing trace data and creat
36. d to be a textbook for interpretation of the sub bottom data EdgeTech reserves the right to change the software features and operation of this product at any time to improve on the user or hardware interfaces To upgrade your system to the latest configuration contact the EdgeTech sales office 3 2 OPERATOR INTERFACE The operator communicates with the system through a video screen keyboard and trackball sonar controls are found in the pop up control panel window The user interface consists of several tabs For example there is a tab that sets up and controls the printer attached to Discover SB status bar in the lower part of the screen displays current operational parameters of the panels have factory default settings When changes are made to various settings they are remembered when the system is shut down Those default settings are stored in file DiscoverSBPDefaults Jni power up the settings DiscoverSBPDefaults Jni are loaded The user can create and save different configuration 3 3 DISCOVER SB USER UNTERFACE The normal Discover SB display consists of the following Main Sonar Data Display Pull Down Menus for Command and Control Toolbars for frequently used commands Status bar for sonar control and sonar data status Control Panels tabbing dialog boxes for modifying parameters These items are described in greater detail below THEORY OF OPERATION 3 7 A Edgelech DISCOVER
37. ding in degrees ZDA Time amp Date UTC day month year and local time zone ZDA hhmmss ss dd mm yyyy ll zz hh lt CR gt lt LF gt hhmmss ss Universal Time Coordinated UTC Hours Minutes Seconds decimal 2 fixed digits of hours 2 fixed digits of minutes 2 fixed digits of seconds and a variable number of digits for decimal fractions of seconds Always pad with leading zeros dd mm Day 01 to 31 Month 01 to 12 yyyy Year Il Local zone description 00 to 13 hour This field is optional and ignored ZZ Local zone minutes description same sign as local hours This field is optional and ignored NOTES Zone description is the number of whole hours added to local time to obtain GMT Zone description is negative for East longitudes The GLL string provides a more accurate time reference since it is related to the position fix THEORY OF OPERATION 4 44 4 Edgelech DISCOVER SB SOFTWARE Time and date from the computer CPU are also recorded and could be displayed if GPS time and date are not available Fix marks are bars across the time zero line in all channels EVT Event amp Annotation EdgeTech custom Event mark and related annotation provided by an integrated navigation system EGEVT S lt Message gt lt Message gt lt Message gt hh lt CR gt lt LF gt S ASCII character status flag M Print and Store event mark Message Event annotation or just annotation message up to 80 characters lo
38. e file name for recording Dir Base directory for recording Record Format You can record in either JSF for standard SEG Y formats We strictly adhere to the SEG Y standard which severely restricts the information that can be recorded Therefore it is highly recommended that during acquire mode all data be recorded in JSF file format ONLY It is possible to playback and record at the same time to transcribe the data into SEG Y for use by other applications as a post acquisition step Status Line SEG Y IBM Floats 1 Original stanrdard for SEG Y OpHons IEEE Floats 5 Predominate floating point representation for the last 25 years EBCDIC Extended Binary Coded Decimal ASCII American Standard Code for Informational Interchange Max Size MB A new file with the same base name and sequential numerical extension will be created when the max file size limit is reached The max size should be set to less than 650MB in order to archive the data on a CD Indicates the current state of disk IO Indicates the true record file name when recording is active including the sequence number Queue Status Line Indicates the internal queue status of the record queue The record queue holds the data pending to be written to disk If the processor disk combination is not fast enough for the data rate then data inside the queues could be dropped This status line indicates whether the performance is adequ
39. e the JPG image Canel Cancel data capture and discard all data Do not create an image THEORY OF OPERATION 3 31 4 Edgelech DISCOVER SB SOFTWARE 4 THEORY OF OPERATION 41 FILE FORMAT Data can be archived to the hard drive of the system in two formats the EdgeTech format and the SEG Y format We STRONGLY recommend that the EdgeTech format is used all the time as the EdgeTech Format stores much greater amount of information than the standard SEG Y NOTE Data stored in EdgeTech format can be converted to SEG Y format by playing it back on the Discover SB program WARNING Data initially stored in SEG Y format cannot be transferred back All the information not supported by the standard will be permanently lost 4 1 1 EDGETECH NATIVE FILE FORMAT Details can be found in the JSF file format manual Doc 990 0000048 1000 4 1 2 STANDARD SEG Y FORMAT The SEG Y format is one of several tape standards developed by the Society of Exploration Geophysicists SEG It is the most common format used for seismic data in the exploration and production industry NOTE The included file SegyStandardType h is provided below 4 1 2 1 Description When Standard Segy format is selected sonar data in traces is represented via IBM 32 Bit floating point numbers as per the standard THEORY OF OPERATION 4 32 4 Edgelech DISCOVER SB SOFTWARE fields are byte oriented as per the standard Bi
40. ed the waterfall is printed in the reverse orientation so that the top of the page becomes the bottom and vice versa When checked the navigation information in the lower part of the printout is printed in reverse order Show Annotate Event Marks When checked event marks are shown by a line down the page and optionally a text label annotation is displayed for each one Current Printer Select one of the supported printers Start Depth Starting depth in display units for the printout Total Depth Total depth in display units for the printout THEORY OF OPERATION 3 23 A Edgelech DISCOVER SB SOFTWARE 3 4 9 ALERTS Logs Misc Record Playback Image Capture Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Alert Enables Disables Speaker Control 0 to Disable Altitude Altitude Min 10 0 51 nterval ms Roll Roll Min 0 0 Max 0 0 Tone 2000 Pitch Pitch Min 0 0 Max 0 0 m Durati Temperature Deg Max 0 0 File Space Min Free MB 10 GPS Item Description Altitude Enable an alert if the altitude 15 below the specified value Pitch Roll Enable an alert if the pitch roll sensors if present report values outside the specified range Temperature Enable an alert if the temperature sensor if present exceeds the specified range This is not implem
41. ented for most towfish File Space Enable an alert if the file space available for recording data to is below the specified value GPS Enable an alert if there is no current GPS position fix Speaker Control When alert condition exists an audible sound can be generated from the built in speaker to alert an operator Interval ms Interval between tones Tone in Hz Frequency of tone in Hz Duration ms Length of tone in MS THEORY OF OPERATION 3 24 4 Edgelech DISCOVER SB SOFTWARE 3 4 10 LOGS Options Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Logs Record Playback Image Capture Per File Log Options Enable T otes Log Entrys 0 Disgnostic Message Monitor 10 17 01 SONAR Ignored in Playback 10 17 01 Ignored in Playback Sonat Data 10 15 26 SONAR Not Connected Hos 10 16 26 NAV No data Off Verbose Item Description Per file Log Options When enabled an ascii text file is created for each jsf file and displays the settings at the beginning of the file New entrys are added to this file when a setting such as the ping rate changes Enable Enable per jsf file log file Notes Text to insert in the log file Message Log The sonar communicates to Discover via messages Example messages are a pitch roll reading or a ping of sonar data The message log d
42. er sweepFreq0 Start frequency binHeader sweepFreq1 End frequency binHeader sweepLengthms Sweep length binHeader sweepType 1 4 1 2 4 EBCDIC Header The EBCDIC header at the start of every segy file contains the card number and names EdgeTech as the source but has no information useful for interpreting the data 4 1 2 5 Include File ERE a ae ee ee as eRe SegyStandardType h JE 5 c Copyright 2002 EdgeTech This file contains proprietary information and trade secrets of EdgeTech and may not be disclosed or reproduced without the prior written consent of EdgeTech y P i EdgeTech is not responsible for the consequences of the use or misuse of this software even if they result from defects in it THEORY OF OPERATION 4 35 Edgelech DISCOVER SB SOFTWARE Disk storage an playback of data ifndef SEGYSTANDARDTYPE define SEGYSTANDARDTYPE H _ typedef struct Offset Description 0 Sequence numbers within line long lineSeq 4 Sequence numbers within reel long reelSeq 8 Original field record number or trigger number long event_number N 12 Trace channel number within the original field record a long channel number 16x long energySourcePt 20X long cdpEns 24X long traceInEnsemble ui ud a 28 Trace ide
43. g Endian That is for a 32 bit integer the 8 MSBs are in the first byte The EBCDIC header is really in EBCDIC and not ascii For Intel based processors all of the above are not standard and will require conversions For example the sonar data must be converted from IBM to IEEE floating point Integers must be converted from Big Endian to Little Endian and the EBCDIC header must be converted to ASCII ONLY envelope data is saved one float per sample 4 1 2 2 Trace Header For the standard 240 byte trace header the following fields are filled in All other fields not listed below are set to 0 sgy gt reelSeq Reel ping number starts at 1 sgy gt lineSeq Reel ping number again starts at 1 sgy gt channel_number Channel number of data starts at 1 Always for a single channel system sgy gt event_number Ping number sgy tracelD Always set to 1 sgy gt vertSum Always set to 1 sgy gt horSum Always set to 1 sgy gt dataUse Always set to 1 If XY Coordinates sgy gt coordUnits 1 for XY sgy gt coordScale Scale factor Value is currently 1 sgy recLongOrX X Source Coordinate as defined in JSF Format sgy gt recLatOry Y Source Coordinate as defined in JSF Format If Lat Long Coordinates sgy gt coordScale 100 sgy gt coordUnits 2 for Lat long THEORY OF OPERATION 4 33 4 Edgelech DISCOVER SB SOFTWARE sgy recLongOrX X Group Coordinate as defined in JSF Format 0 6 sgy re
44. gits for decimal fractions of seconds Always pad with leading Zeros NOTE The hhmmss ss field is optional GGU Geographic Position X and Y Coordinates X and Y coordinates of the present vessel position time of position fix and status GGU xxxxxxxx x a yyyyyyyy y b hhmmss ss hh CR LF xxxxxxxx x Double floating point numeric may have leading negative sign Represents horizontal axis of plane X coordinate a Character label for X Must be a valid ASCII character but value 15 ignored Double floating point numeric may have leading negative sign Represents vertical axis of plane Y coordinate b Character label for Y Must be a valid ASCII character but value is ignored hhmmss ss Time of position fix Hours Minutes Seconds decimal 2 fixed digits of hours 2 fixed digits of minutes 2 fixed digits for seconds and a variable THEORY OF OPERATION 4 43 A Edgelech DISCOVER SB SOFTWARE number of digits for decimal fractions of seconds Always pad with leading Zeros NOTE The hhmmss ss field 15 optional VTG Track Made Good and Ground Speed The actual track made good and speed relative to the ground VTG x x T x x M x x N x x K hh lt CR gt lt LF gt Floating point numeric T Degrees True M Degrees Magnetic N knots K Kilometer hour NOTE Magnetic heading corrected for local deviation and Easterly Westerly variation would provide more accurate True vessel hea
45. hat is run in the background Sonar exe interfaces with the DSP and the analog interface boards to generate and transmit chirp pulses A startup file launches the sonar exe program automatically every time the system is booted 1 1 2 APPLICATIONS This system has the unique ability to strip away the world s oceans and provide high resolution sub bottom images This tool lends itself to various tasks that include Imaging fluidized mud to a resolution of 8 cm Sediment classification Buried pipeline and cable location amp routing Dredging studies for inlets Scour erosion surveys in rivers and streams Marine geotechnical surveys Bridge erosion surveys Hazardous waste target location Geological surveys Archeological surveys Imaging biologics in water column Mapping clam populations Beach renourishment Military and Offshore Oil applications 9 9 9 gt 99 gt 9 9 9 Full ocean depth sub bottom imaging hull mount systems INTRODUCTION 990 0000026 1000 2 1 1 2 A Edgelech DISCOVER SB SOFTWARE 1 2 SOFTWARE DISPLAYS Real time Video Display The software displays Sub bottom cross section data in a dedicated window Real time Geo referencing sub bottom data are geo referenced when navigation information is supplied Real time Processing Real time processing includes removals of swell effect adaptive automatic gain control and time variable gain Data are logged in real time in native
46. he asserted trigger input has no effect THEORY OF OPERATION 4 40 A Edgelech DISCOVER SB SOFTWARE External Trigger In this mode the system is triggered by the external event received via the Trigger IN BNC connector in the back of the system When the hardware trigger is asserted active log a new ping occurs Note that there is a minimum trigger interval maximum rate of each subsystem which is dependant on the Pulse Type used and is proportional to the pulse length That is a longer pulse will also set a longer minimum interval to keep the ON OFF duty cycle of the Power Amplifier below the maximum allowed typically 1 10 The actual trigger interval used will be the LARGER of the user interval and the Power Amplifier imposed limit 4 3 NAVIGATION The following information describes the serial port interface parameters for acquiring navigation strings from a connected GPS unit or integrated navigation computer to the MP X serial port Several of the messages conform to the NMEA 0183 protocol For additional information refer to NATIONAL MARINE ELECTRONICS ASSOCIATION NMEA 0183 STANDARD FOR INTERFACING MARINE ELECTRONICS NAVIGATIONAL DEVICES Version 2 00 January 1 1992 4 3 1 NMEA APPROVED SENTENCE STRUCTURE The following provides a summary explanation of the approved sentence structure aabbb c c hh lt CR gt lt LF gt ASCII HEX DESCRIPTION 24 Start of Sentence THEORY OF
47. her amplified in the display Decreasing the gain has the opposite effect The gain may be adjusted from 40dB to 40dB Gain values between 20dB and 20dB tend to be the most useful Use right mouse click to reset to reference Gain Control Normalize TVG Control Up Down This recalculates the scale factor which is applied to the data prior to displaying it This scale factor is chosen to cause the Peak value of the return to just reach maximum intensity on the displays when the Associated gain value is set to O0dB The scale factor is recomputed for each press of the normalization button Time Varying Gain in dB per 100 meters of depth to apply to the pixel data The TVG is applied beginning at the seabed if the bottom tracker feature 15 enabled otherwise from the beginning of the record and continues until the MAX value is reached Ping On Off Show Control Panel Turns pinging on and off for any of the three displays Displays and or hides the control panel Insert Mark Inserts a new mark and increments the mark number Toggle Record or Playback Toggles between disk record and idle or if in playback mode pauses playback Playback slower Slows down the playback rate Playback faster Speeds up the playback rate Printer On Off Turns the waterfall printout on and off 3 3 5 PULL DOWN MENUS Table 3 4 Toolbar Item Description File New Mark Inserts a new even
48. in status line if checked Course Speed Displays the GPS derived course and speed on the main status line if checked Time Displays the GPS derived time on the main status line 1f checked Pitch Roll Displays the pitch and roll reading on the main status line if checked and the system is fitted with the optional motion sensor Mark Displays the mark number and annotation on the main status line if checked Overflow Check Displays the data overflow counter on the main status line if checked If the overflow count increases then some data 15 being dropped either inside the bottle or in the topside It is normal to see this value increment when the THEORY OF OPERATION 3 19 A Edgelech DISCOVER SB SOFTWARE pinging is turned on or off Since it is based on a discontinuity this can also happen if a trigger decimator is not in some triggering modes eg coupled mode Sample Displays the sample of the mouse pointer on the main status line if checked Cursor Depth Displays the depth in user units of the mouse pointer on the main status line if checked Pressure Displays pressure reading from the optional pressure sensor Depth Estimate Displays towfish depth estimated form the pressure reading Water Temp Displays water ambient temperature FS DW systems only Reflection Coef Displays the actual sea floor reflection coefficient Status Font Size Used to select the font text size of the status display Nu
49. increment the mark number and insert an event mark Annotation When changed a mark number annotation will be inserted into the data stream Depth From Pressure Depth is estimated from pressure if a pressure sensor is Estimator present based on these values For normal sea water a salinity value of 35 should be used For fresh water use 0 XY Plot Parameters Pitch Select the color for the optional pitch data displayed on the XY plot on the top of the waterfall XY Plot Parameters Roll Select the color for the optional roll data displayed on the XY plot on the top of the waterfall XY Plot Parameters Select the color for reflection coefficient data displayed Reflection Coef on the XY plot on the top of the waterfall Bottom Track Indicator Bottom track indicator confirms that reflection coefficient Offset data 1s calculated from the water sea floor interface The offset unit is based on the display unit m ms or samples Tack Indicator Select the color for the bottom track indicator THEORY OF OPERATION 3 26 Eagelech DISCOVER SB SOFTWARE Heave Indicator Select the color for the heave indicator The heave indicator displays the heave amount offset from the bottom track indicator Most systems do not have a heave sensor and so the heave indicator should be disabled 3 4 12 RECORD Options Sonar Control Sonar Control Page 2 Display l Display Page 2 Status Bar
50. isplays the most recent messages received and is useful for diagnostic purposes Sonar Cmds Show sonar commands in the log Sonar Data Show sonar data in the log Pause Pause the log to make it easy to read the entrys Verbose Show more information THEORY OF OPERATION 3 25 4 Edgelech DISCOVER SB SOFTWARE 3 4 11 Misc Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Logs Misc Record Playback Image Capture Display Units XY Plot Parameters Units Meters M 7 Sound Speed M S 1500 Pitch Disabled v Reflection Coef Blue X Disabled v Pitch Rolli Scale 05 Degrees v 8805 o 3605 2712000 Annotation Note Reflection Coef Scale is 0 to 40 DB New Mark Track Indicators on Waterfall Display Depth from Pressure Estimator 2 Temperature Source Manual Entry Below Bottom Track Indicator Offset Track Indicator Manual Override Temperature Deg 0 v Heave Indicator Disabled Salinity PPM Item Description Display Units Sets the display user units for most displays The waterfall axis will display the scale in these units Sound Speed M S Enter value used for depth calculation 1500m s default Mark When changed a mark number annotation will be inserted into the data stream There is also a button on the toolbar and here to
51. ke display CUSTOMER SERVICE 990 0000026 1000 2 1 5 1 Eggelech DISCOVER SB This helps to determine noise levels and the proper operation of transmit power electronics The Discover J STAR program also assists interpretation with FFT analysis that shows interfering noise sources by frequency distribution and spectral amplitude The Discover J STAR program may also be used to acquire raw data and log this data to disk for offline analysis Having recorded raw data available for analysis by EdgeTech engineers will often speed up the resolution of suspected problems Such files may be sent to EdgeTech in CDROM format or if small as email attachments Many system control and setup parameters are recorded in these raw data files which will assist in problem diagnosis The Graph tab on the Control Panel will display any channel of data and its FFT frequency spectrum Start the Discover J STAR Turn pinging on to the Graph Tab in the Control Panel You should now see something like the following figure CUSTOMER SERVICE 990 0000026 1000 2 1 5 2 DISCOVER SB 4 Edgelech Plots Spectrum FFT in dB Autoscales displays for each re draw if checked Manually implement a display rescale Channel 3 SS Low Stbd GRAPH display Tab 550 SSH Graph q Status Control Misc i isk Channel 3 i AutoScale ReScale Pause Save to File Saves current Display d
52. ket pair When not checked Discover does not connect to the sonar useful for playback only mode Status Line Displays the current status of the command and data sockets If the connect count is odd C 1 for example then the socket is connected When both the data socket and the command socket are connected then network status on the main status bar should change from blinking red to gray 3 4 7 NAVIGATION Options Misc Record Playback Image Capture Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Logs Com Port Setup Layback Nav Track Left Mouse Click for Target Enable Baud D Save Nav Track Data To File TEE Back cm v First 4800 File C EdgeTech Data 3200 XS NavTrack 51 ES 0 Second 4800 OE Bottom Digitize Right Mouse Click Third se e Layback Enable Enable Bottom Digitize File File C EdgeTech Data 3200 XS BattomDig E Coordinate Units xcv from GPGXY Message MM eye E x Playback Mode Show Raw Item Description Com Port Setup Enable GPS and other data can be picked up from up to 3 serial First Second Third ports In addition if connecting to ETSI this type of data can also be received from ETSI via a TCP IP link Com Port Setup Baud Specifies the baud rate of the input data For standard NMEA inputs 4800 baud is recommended Com Port Setup Por
53. litude 5 000 Distance Indicator Every p No Heave Compensation Swell Filter Swell Filter Pings 20 Manual Speed Override Use Depth Estimate Based on Pressure Sensor to Display Event Mark Indicator Vertical Length in Pixels Data in an Absolute Depth Scale if value is gt 0 Max Abs Depth or 0 Disabled 0 Direct Path Removal To Depth Indicator Every Item Description Palette Used to select a color palette file for data display Different linear and logarithmic pallets are available for better visualizing the data Invert If checked the data 15 inverted prior to being processed by the palette Reflection Coef Calibration Offset DB Additive offset in DB for the reflection coef display The reflection coef Calibration value on the Sonar Advanced tab only applies to acquired data This is an additional bias temporary adjustment that can be used during playback as well This value 15 not saved with the data and is for display purposes only Reflection Coef Time Constant in Pings When non zero the reflection coef values are smoothed with a low pass filter Heave Compensator The selected heave sensor readings will be used to adjust the display and printout Heave Amplitude This will only be applicable if the heave sensor 15 selected as the Heave Compensator The heave amplitude can be increased or decreased with in a thousandth of a degree Recommended correction from
54. mber of Status Lines Used to select the number of status lines drawn in the bottom of the screen Edit Custom Fields In addition to the predefined items above a 240 byte header similar to Segy Y is maintained for each ping Any field from this header can be displayed on the status line using these custom field options 3 4 6 NETWORK Logs Misc Record Playback Image Capture Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Configuration Address 1127001 Socket 1600 Enable Connection To Sonar Reset To Default Address lt 0 0 C 0 L 34 Data 4 0 R 0 0 1 34 Item Description TCP IP Address Address of the sonar computer or FS IU topside to connectto This should be in the form of four digits THEORY OF OPERATION 3 20 4 Edgelech DISCOVER SB SOFTWARE separated by periods e g 192 10 0 100 TCP IP Socket Socket number of the sonar computer to connect to This should be a decimal integer and 15 typically 1700 Reset to Default Address Resets the TCP IP address and socket number to 127 0 0 1 the same computer Discover 15 running on adn 1600 These are the default values if connecting to the EdgeTech ETSI EdgeTech Sonar Interface application Enable Connection to Sonar When checked Discover connects to the sonar via the TCP IP address soc
55. ng with a maximum number of messages being 10 NOTES Only the first 23 characters of the first message is saved in the data segy data A maximum of 10 lt Messages gt separated by commas may be sent Annotation and event marks are placed on the screen when received printed on the printer if on and stored on disk along with time date and coordinates Event marks are displayed on the top of the screen as a tick mark and mark number NOTE A shortcut to the Windows HyperTerminal application is provided to check the navigation input You must quit the MP X application before running and may need to modify the properties if not running at 4800 baud A sample display is shown below GPGLL 2600 0100 N 800000 0000 W 151228 99 A 67 GPVTG 315 65 T 314 15 M 3 8 N 7 0 K 48 GPZDA 151229 25 28 08 1997 06 00 45 EGEVT M EventNo Time Position Annotation 73 GPGLL 2600 0125 N 8000 0025 W 151229 50 A 84 GPVTG 316 65 T 315 15 M 3 9 N 7 1 K 33 THEORY OF OPERATION 4 45 Edgelech DISCOVER SB SOFTWARE GPZDA 151229 75 28 08 1997 06 00 45 SEGEVT M EventNo Time Position Annotation 48 GPGLL 2600 0150 N 800000 0050 W 151229 99 A 12 GPVTG 315 85 T 314 65 M 3 8 N 7 0 K 58 GPZDA 151230 25 28 08 1997 06 00 72 EGEVT M EventNo Time Position Annotation 48 NOTES The number of incoming strings should be limited to the five mentioned above For accurate fixes the navigation strings should be updated once
56. ntification code seismic data 1 short traceID 30X short vertSum 32X short horSum 34X short dataUse 36X long sourceToRecDist 40X long recElevation 44X long sourceSurfaceElevation 48 X long sourceDepth 52X long datumElevRec 56X long datumElevSource 60 X long sourceWaterDepth 64X long recWaterDepth THEORY OF OPERATION E X TE ud 4 36 Edgelech DISCOVER SB SOFTWARE 68 Elevation Scaler scale 1 short elevationScale 70 Coordinate Scaler scale 1 short coordScale NX long sourceLongOrX 716X long sourceLatOrY 80X long recLongOrX 84X long recLatOrY 88 Coordinate Units 2 Lat Long short coordUnits 90 X short weatheringVelocity 92 X short subWeatheringVelocity 94 X n short sourceUpholeTime 96 X 2 short recUpholeTime 98 X e short sourceStaticCor 100 X short recStaticCor 102 Total Static in MILLISECS added to Trace Start Time lower 2 bytes short totalStatic 104 X short lagTimeA 106 X short lagTimeB 108 X short delay 110 X short muteStart 112X short muteEnd 114 Number of samples in this trace unless 32767 short sampleLength 116 Sampling interval in MICROSECONDS unless 1 short deltaSam
57. ot on the price list Software fixes and changes Product integration Beta site testing Documentation updates to on line help Tests for compatibility with other modules SOFTWARE PATCHES CONSIST OF SOFTWARE THAT HAS UNDERGONE Minor software enhancement Software fixes and changes Software Performance Report A customer may also submit reports by means of a SPR Software Performance Report form to EdgeTech The report may be related to a problem an inquiry or a specific request for a CUSTOMER SERVICE 990 0000026 1000 2 1 6 11 Eggelech DISCOVER SB software enhancement We will attend to the SPR at a priority level depending on the seriousness of the problem and the availability of a work around Software Telephone Fax and E mail Support The SSA entitles a customer to contact EdgeTech User Support representatives by telephone fax or e mail to report a difficulty discuss a problem or receive advice on the best way to do atask EdgeTech User Support will Respond within 24 hours Immediately attend to serious problems affecting customer s operations Attempt to find an immediate work around Annual Software Maintenance Agreement Fee Contact Sales Dept TERMS This agreement is for one calendar year and is renewable upon payment to EdgeTech If the agreement lapses paying that year s maintenance fee can renew it Regular software releases with all modifications and enhancements will automatically be forwarded to the user
58. ple 118 Gain Type 1 Fixed Gain short gainType 120 Gain of amplifier short gainConst 122 X 4 37 A Edgelech short initialGain 124 X short correlated 126 X short sweepStart 128 X short sweepEnd 130 X short sweepLength 132X short sweepType 134X short sweepTaperAtStart 136 X short sweepTaperAtEnd 138 X short taperType 140 short aliasFreq 142 short aliasSlope 144 short notchFreq 146 X short notchSlope 148 X short lowCutFreq 150 X short hiCutFreq 152 short lowCutSlope 154X short hiCutSlope 156 year of Start of trace short year 158 day of year at Start of trace short day 160 hour of day at Start of trace short hour 162 minute of hour at Start of trace short minute 164 second of minute at Start of trace short second 166 Time basis code 2 GMT short timeBasisCode 168 X short traceWeightingFactor THEORY OF OPERATION 77 ui 77 u ui DISCOVER SB SOFTWARE f i 4 38 4 Edgelech DISCOVER SB SOFTWARE 170 X short phoneRollPos1 172 X short phoneFirstTrace 174 short phoneLastTrace 176 X ui short gapSize 1 178 X short taperOvertravel 180 240 U
59. received blinks red alert state otherwise it is gray Network Status Displays the status of the sonar TCP IP link If not connected blinks red alert state Record Status Displays the status of the disk recording If not recording blinks red alert state Altitude Status Indicates the altitude above bottom as determined by the selected bottom tracker If too close to the bottom blinks red alert state Current Mouse Position Status Help Displays help on the control that the mouse is on or statistics about the ping the mouse is pointing to Current Run Time Status Displays information about the current ping e g GPS fix ping number signal strength etc as specified in the Status Bar options page 3 3 4 TOOLBAR Table 3 3 Main Status Line The Tool bar is located on the top of the display window above the Waterfall display and below the pull down menus THEORY OF OPERATION Toolbar buttons provide shortcuts for some of the most 3 9 4 Edgelech DISCOVER SB SOFTWARE common control panel items items in the toolbar are duplicated in a control panel item Most of these options are summarized below Item Description Gain Control Up Down The gain setting should normally be set to 00 dB This will cause data with similar amplitudes to be correctly displayed once the Normalize button is pressed Increasing the gain will cause the data to be furt
60. rk indicators on the waterfall display If there are a lot of event marks a long indicator line can obscure the waterfall data Grids Horizontal and vertical grid marks can be painted on the waterfall display at the intervals specified if these check boxes are checked Manual Speed Override When checked the NMEA speed is ignored and the specified constant value is used for painting the distance grid marks THEORY OF OPERATION 3 18 Edgelech DISCOVER SB SOFTWARE 3 4 5 STATUS BAR Image Capture Logs Misc Record Playback Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Printer Alerts SB Ping Lat LongorxY Sample SBSignal Course Speed Cursor Depth seule SB Gain ms Pressure Reserved SB PulselD m aoe o Depth Estimate Wiz Pulse Info Annotation Overflow Check Status Font Size 22 Number of Status Lines 1 Time Date Source NMEA Temperature Wi zen Edit Custom Fields Item Description SB Ping Displays the ping number on the main status line 1f checked SB Signal Displays the signal meter value in tenths of a percent on the main status line if checked SB Gain Displays the ADC gain on the main status line 1f checked SB Pulse ID Displays the unique pulse identification number Lat Long Display the GPS position fix on the ma
61. second channel usually starboard Search range from the current bottom in display units for the bottom tracker algorithm A value above threshold must be within this range of the current bottom for the tracker to adjust the current bottom If 0 then the tracker is disabled Bottom Tracker Threshold Minimum value required for a detected seabed bottom The bottom tracker will not modify the current bottom unless the sonar return is above this value Bottom Tracker Hold off Minimum depth for the bottom tracker The bottom Min altitude tracker will not move the current bottom below this value Bottom Tracker Max Max depth for the software to search for the bottom Altitude Bottom Tracker Time When non zero the bottom trackers estimated altitude Constant which can otherwise be noisy jagged is smoothed out with a low pass filter Enable Tracker Enable or disable the bottom tracking THEORY OF OPERATION 3 16 A Edgelech DISCOVER SB SOFTWARE 3 4 4 DISPLAY 2 Options Misc Record Playback Image Capture Sonar Control SonarControlPage2 Display Display Page 2 Status Bar Network Navigation Printer Alerts Logs Palette C Edgetech Discover SB 3200 XS Palettes Invert From Trace Samples Enable Reflection Coef NN 0 0 in pi 15 0 Calibration Offset DB Time Constant in Pings Grids and Event Marks Heave Compensator Sensor Heave Amp
62. ser defined area char userDefined 60 SegyStandardType end of segy trace header endif SegyStandardType JE n oe end StorageFormats cpp fice E EEEE EE EE S E deese 4 1 3 RAW DATA CAPTURE FORMAT The Graph tab of the Control Panel has an option to capture it current data and save it to a file This data is stored with no header as 32 bit floating point values IEEE The size of the file determines the number of samples in the trace 4 1 4 SONAR DATA TYPES The Discover SB supports three types of sonar data which are useful to display Raw Data Unprocessed data directly from the ADC This data 1s useful for diagnostic purposes only Analytic Signal Match filtered data This data is complex and consists of real and imaginary pairs Sub bottom data is normally transmitted in this format because it contains additional frequency information not present in envelope data Envelope This is the square root of the sum of the squares of the real and imaginary components of the analytic signal data This is how waterfall data is normally displayed Only the bandwidth is required as compared to analytic signal data THEORY OF OPERATION 4 39 4 Edgelech DISCOVER SB SOFTWARE 4 1 5 PALETTE FILE FORMAT Each display channel can have a color palette which is specified by a jsp file These files are text files with numbers separated by white space The numbers m
63. t This is the actual port number eg 1 for COMI that the THEORY OF OPERATION 3 21 A Edgelech DISCOVER SB SOFTWARE NMEA device is attached to Layback Back cm Layback from the GPS source to the tow body Layback Stbd cm Layback from the GPS to the tow body port stbd bias Layback Enable When enabled GPS coordinates are biased by the layback values Coordinate Units Specifies which NMEA sentence to used for coordinate display Nav Track File and Enable Bottom Digitization File and Enable When enabled navigation track information is written to the specified file When enabled bottom digitization information is written to the specified file Show Nav Press this button to update the pull down list box with the most recent navigation values parsed Show Raw Press this button to update the pull down list box with the raw NMEA strings most recently received character is prefixed to each string that Discover does not parse recognize 3 4 8 PRINTER Misc Logs Sonar Control Sonar Control Page 2 Display Display Page 2 Status Bar Network Navigation Lines printed 0 Banner 100 OF 02 0 Decimation 1 N 1 Depth Indicator E very 0 Disabled X Distance Indictor E very 0 Disabled Annotate Manual Speed knot 0 00 Override Record Playback Image Capture Printer Alerts Start Depth 0 Printer Port LPT1 0
64. t can be customized Table 3 1 Waterfall Display 3 3 2 WAVE FORM DISPLAY The waveform display displays the signal amplitude as an X Y plot of the current sonar data The scope display is a convenient method of adjusting the bottom tracker Item Description Scope Plot Plots the current trace in an x y plot THEORY OF OPERATION 4 Edgelech DISCOVER SB SOFTWARE Red Vertical Line Indicates the current bottom track threshold Green Horizontal Line Indicates the current bottom track position Blue Horizontal Lines Indicates the bottom track range Scroll Bar Scroll up or down to pan around inside the waterfall Mouse Current Statistics and Information Move the mouse pointer to a ping and the selected status information will be displayed in the main status bar Mouse Set bottom track position and threshold Click and release the left mouse button to set the current bottom track position and threshold Mouse Set bottom track range Press the left mouse button and drag to select the bottom track range If only a very small drag is performed then the track range is set to zero and the tracker is disabled 3 3 3 MAIN STATUS LINE Table 3 2 Wave Form Display The Main Status Line is located at the bottom of the display under the waterfall display Item Description GPS Status Displays the status of the GPS input If GPS is not being
65. t mark and increments the mark number THEORY OF OPERATION 3 10 Edgelech DISCOVER SB SOFTWARE File Record to file Toggles between disk record and idle or if in playback mode pauses playback File Playback slower Slows down the playback rate File Playback faster Speeds up the playback rate File Printer On Off Turns the waterfall printout on and off File Save Configuration Save current settings in JStar ini File Exit Don t Save Settings Exits without saving settings File Exit Save Exits and saves current settings in JStar ini Sonar On SB SSL SSH Turns pinging on and off Sonar Control Panel Displays and or hides the control panel View Toolbar Displays and or hides the toolbar View Status Bar Displays and or hides the status bar View Gain Up Down Reset Modifies current gain View Normalize View Zoom Modifies reference gain Zooms in and out in waterfall Help Topics Displays on line help if present Help About Displays current J STAR version information Help Password Maintenance Prompts for an authorization code to enable unrestricted option Table 3 5 Pull Down Menus 3 3 6 USING THE TRACKBALL There are several areas on the screen where mouse or trackball clicks will modify the display or cause a function to execute 3 3 6 1 Left Button By clicking
66. the products we manufacture We want you to be entirely satisfied with your equipment The information in this manual will get you started It tells you what you need to get your equipment up and running and introduces its many features We always enjoy hearing from people who use our products Your experience with our products is an invaluable source of information that we can use to continuously improve what we manufacture We encourage you to contact or visit us to discuss any issues whatsoever that relate to our products or your application The Employees of EdgeTech INTRODUCTION 990 0000026 1000 2 1 1 1 4 Edgelech DISCOVER SB SOFTWARE 1 INTRODUCTION 1 1 OVERVIEW 1 1 1 DISCOVER SUB BOTTOM Discover SB is a limited function diagnostic topside for EdgeTech Full Spectrum chirp sonar systems Discover SB supports the 3200 XS sub bottom system It is furnished as an aid to help verify correct EdgeTech Full Spectrum Sonar operation prior to or during deployment Discover SB includes the following capabilities A waterfall reflection coefficient and waveform data displays e Frequency data analysis for advanced system diagnostics Data recording and playback e Limited thermal printer support for waterfall data output NMEA GPS navigation input Sonar command and control e Sonar diagnostics The Discover Sub Bottom program is supported under Microsoft s Windows 98 Windows NT 4 0 or higher Windows 20
67. tical scale as linear spectral amplitudes Autoscale Check Box If checked the displays are re scaled for EACH redraw data update so that the min max amplitudes of the current data span the available display range This can be confusing to the eye if the amplitudes of the signals vary greatly from ping to ping as each display will appear to have the same amplitude unless the axes values are carefully observed It is SAFEST to leave this unchecked and manually ReScale as required ReScale Push Button A one time for each push activation of the display re scale function See above description Save to File Push button and Edit Window The displayed graph data can be saved to a disk file for sending to EdgeTech Tech Support for analysis Enter a file save name in the edit window Hint Use the pause check box to freeze the display to make sure of the data CUSTOMER SERVICE 990 0000026 1000 2 1 5 4 Eggelech DISCOVER SB being saved NOTE ONLY the data being displayed is saved i e channel 3 in this case No other channels are saved Signal Level Cursor These 2 yellow lines can be dragged vertically to mark and display amplitude levels For raw data the amplitudes are in A D counts The ADC values are represented in 16 bits which allows for 65536 discrete levels These are interpreted as bipolar signals with an amplitude range 32767 Raw Data Display the raw data acquired by the A D subsystem
68. to apply to every pixel of data Norm Normalize data When pressed the display data is re scaled so that the maximum value of the next ping is set to THEORY OF OPERATION 3 15 4 Edgelech DISCOVER SB SOFTWARE display as maximum display intensity Norm DB When the normalization is completed the Norm dB field is set to the new overall scale factor TVG DB 100M Time Varying Gain in dB per 100 meters of depth to apply to the pixel data The TVG is applied beginning at the seabed if the bottom tracker feature is enabled otherwise from the beginning of the record and continues until the MAX value is reached Max DB TVG Maximum value in dB Display Max Abs Depth When non zero this value is the total absolute depth in the waterfall and data 15 displayed on an absolute scale where 0 is the surface of water To work properly pressure sensor must be present to estimate fish depth This is an effective method to remove heave in rough seas Zoom Sub sampling or replication factor for pixel data Bottom Tracker Current Bottom Bottom Tracker Range Current bottom in nominal display units The bottom tracker adjusts this value when enabled TVG is applied beginning at this position Note that for a dual side scan display a negative value indicates that the bottom tracker will operate on the first channel usually port and a positive value indicates that the tracker will operate on the
69. ts a vertical line on the screen when a new file starts THEORY OF OPERATION 3 29 A Edgelech DISCOVER SB SOFTWARE 3 4 14 IMAGE CAPTURE Sonar Control Sonar Control Page2 Display DisplayPage2 StatusBar Network Navigation Printer Alerts Logs Misc Record Playback Image Capture Depth Indicator E very 5 Meters Annotate Depth Start Depth 60 Flip Data Show Event Mark Distance Indictor Every 100 v Annotate Distance End Depth 30 AOI en mmm Annotate Event Marks New File Every 0 gt Disabled 0 Meters Ping Decimation 1 Sample Decimation 1 JPeg Quality Factor 20 Manual Speed in knot 0 00 Override JPEG File Name C Discover Sub bottom JPegData 3 IDLE As an alternative to printing out the waterfall on thermal paper a standard JPG file can be created and viewed on screen or printed on a standard printer This section specifies parameters for and controls for creating a JPG image To use this feature select the desired generation parameters begin playing back the file press the Begin Capture button wait till the end of the desired region and finally press the End Capture button It is important to note that while very large JPG images can be created both Discover and JPG readers have practical limitations on the size of a JPG image If the image becomes too large excessive CPU resource can be required or the creation can fail Therefore
70. ust be ordered in groups of 4 For each group the values are Index 0 to 255 Red Intensity 0 to 255 Green Intensity 0 to 255 Blue Intensity 0 to 255 The indices must be increasing in value If there are gaps in the index then intermediate color values will be interpolated Here is an example table for a linear gray step wedge type palette 0 0 0 0 255 255 255 255 4 2 TRIGGERING AND COUPLING To avoid interference the Discover SB system supports the following different type of triggering Modes Internal Trigger In this mode the user may specify the ping rate in Hertz e g 3Hz or ping range in Meters The system will use the closest available inter ping interval e g 332 99ms and repeatedly re trigger the system at the expiration of this period Coupled Mode This mode applies only to a combined sub bottom and side scan system In coupled mode the applicable subsystem is triggered when the master subsystem triggers The trigger timing for coupled systems takes account of differing transmit pulse lengths and minimizes inter channel interference Gated Gated and internal trigger modes are similar in that an internal timer determines the trigger rate However in gated mode a hardwired trigger input line is monitored Whenever the trigger line is asserted active low the trigger 15 inhibited for the trigger delay period as described below If the next ping time is longer than the specified delay then t
71. x378 End Depth 1000 Gain DB 0 00 Show Event Marks Annotate Event Marks Reverse Printing Reverse Banner Reverse Annotation Label Current Printer Show Bottom Track Indicator Show Reflect Coefficient Item Description Printer On When checked enables data output to the printer Status Line THEORY OF OPERATION Indicates the depth of the printer queue If the printer is not fast enough then data to be printed may be dropped in record mode In this case the overflow count in the status will increment 3 22 Edgelech DISCOVER SB SOFTWARE Decimation 1 N Depth Indicator Positive value A decimation of 1 will print every ping of data 2 every other line etc For a slow printer increasing the decimation factor should reduce or eliminate printer queue overflows and provide a more uniform printout When enabled draws a depth grid on the printer at the specified intervals Distance Indicator When enabled draws a distance grid on the printer at the specified intervals Annotate grid When checked text labels are displayed on the grid Manual Speed in knot Used to draw the distance indicator based on the constant specified velocity if enabled and ignores the NMEA supplied speed Gain DB Additional gain to be applied to the printout Port LPT port IO address that the printer is attached to Reverse Printing Reverse Banner When check

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