LBL CALIBRATION. Kongsberg Simrad AS - Training Department LBL Calibration - page 1

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1 LBL CALIBRATION Kongsberg Simrad AS - Training Department LBL Calibration - page 1 INTRODUCTION The purpose of this section is to give you some of the theoretical background information needed for LBL calibration and MULBL setup The section is written for general operation and you might therefore find topics not relevant for your use of the system Note that file names, water depths, channel numbers, values in default parameters, interrogation interval, and other settings might be different in live operations than in the screen dumps in this section Note that the screen dumps in this training manual are taken with different APOS software versions and not necessarily fit the software you have on-board or in a standard APOS Trainer Special simulator and setting files must be installed on an APOS Trainer to get the same screen dumps as in this section Kongsberg Simrad AS - Training Department LBL Calibration - page 2

2 DOCUMENT LOGISTICS Revision Date Written by A TOS B TOS C TOS D TOS History Changes A First edition B Minor changes C Removed slides : Geographical calibration Removed slides : Error ellipsis New slides : Recover array transponders D New information about LBL runtime calibration and wizard Layout changed to fit new graphical profile Kongsberg Simrad AS - Training Department LBL Calibration - page 3 WHAT IS LBL CALIBRATION? Long base line calibration is to decide the local coordinate system of the transponders deployed for use in an LBL array Kongsberg Simrad AS - Training Department LBL Calibration - page 4

3 CONTENTS 01 Front page 02 Introduction 03 Document logistics 04 What is array calibration? Contents 09 Planning a LBL array 10 Operating area 11 Seabed footprint - transducer beams 12 Number of transponders 13 Surface footprint - narrow beam 14 Surface footprint - wide beam 15 Array radius - narrow beam transponder 16 Array radius - wide beam transponder 17 Array geometry 18 Transponders with clump weight 19 Transponder channels 20 Pre deployment check list 21 New LBL calibration wizard approach 22 LBL runtime calibration approach 23 LBL array data approach 24 Geographical calibration approach Kongsberg Simrad AS - Training Department LBL Calibration - page 5 CONTENTS 25 Open file with configured transponders 26 Default parameters Array radius as marker 31 SSBL positioning 32 Open New LBL calibration wizard dialog 33 Prepare LBL calibration 34 LBL channels 35 Measure baselines or not 36 Set position mode 37 Array prepared for positioning 38 Locations and error ellipses 39 Open LBL positioning dialog 40 LBL positioning screen dump 41 Initial and calibrated positions 42 Transponder parameters 43 Measured baselines details 44 Position setup Kongsberg Simrad AS - Training Department LBL Calibration - page 6

4 CONTENTS 45 Open LBL runtime calibration dialog 46 Start and stop log buttons 47 Calculate button 48 Measurement residuals 49 Result of measurements - positions 50 Result of measurements - 1 sigma positions Graphically presentation of calculations 53 Update LBL array data with calculated positions 54 Last update information 55 LBL positioning screen dump 56 Blank page for special print-outs 57 Initial and calibrated positions 58 Transponder parameters 59 Measured baselines details 60 Position setup 61 Open LBL array data dialog 62 Calibrated to initial positions 63 Change error ellisis for initial positions 64 LBL calibration mode Baseline measurements Kongsberg Simrad AS - Training Department LBL Calibration - page 7 CONTENTS 69 Calculate calibrated positions 70 Decide error ellipsis calculation method 71 Calibrated position 72 Initial and calibrated positions 73 LBL position mode 74 Activate LBL positioning 75 LBL positioning screen dump 76 LBL positioning screen dump 77 MULBL principle 78 Master and backup master transponder 79 TAD & LIC 80 Position intervals 81 MULBL position mode 82 Activate master transponder 83 Activate MULBL positioning 84 MULBL positioning screen dump 85 Dual MULBL setup 86 Activate dual MULBL positioning 87 Dual MULBL positioning screen dump 88 Dual MULBL positioning screen dump details Recover array transponders Kongsberg Simrad AS - Training Department LBL Calibration - page 8

5 PLANNING A LBL ARRAY Kongsberg Simrad AS - Training Department LBL Calibration - page 9 OPERATION AREA Kongsberg Simrad AS - Training Department LBL Calibration - page 10

6 SEABED FOOTPRINT - TRANSDUCER BEAMS Kongsberg Simrad AS - Training Department LBL Calibration - page 11 NUMBER OF TRANSPONDERS Kongsberg Simrad AS - Training Department LBL Calibration - page 12

7 SURFACE FOOTPRINT - WIDE BEAM Kongsberg Simrad AS - Training Department LBL Calibration - page 13 SURFACE FOOTPRINT - NARROW BEAM Kongsberg Simrad AS - Training Department LBL Calibration - page 14

8 ARRAY RADIUS - NARROW BEAM TP Kongsberg Simrad AS - Training Department LBL Calibration - page 15 ARRAY RADIUS - WIDE BEAM TP Kongsberg Simrad AS - Training Department LBL Calibration - page 16

9 ARRAY GEOMETRY Kongsberg Simrad AS - Training Department LBL Calibration - page 17 TRANSPONDERS WITH CLUMP WEIGHT Kongsberg Simrad AS - Training Department LBL Calibration - page 18

10 LBL TRANSPONDER CHANNELS Kongsberg Simrad AS - Training Department LBL Calibration - page 19 PRE DEPLOYMENT CHECK LIST Kongsberg Simrad AS - Training Department LBL Calibration - page 20

11 NEW LBL ARRAY WIZARD APPROACH Kongsberg Simrad AS - Training Department LBL Calibration - page 21 LBL RUNTIME CALIBRATION APPROACH Kongsberg Simrad AS - Training Department LBL Calibration - page 22

12 LBL ARRAY DATA APPROACH - STEP BY STEP Kongsberg Simrad AS - Training Department LBL Calibration - page 23 GEOGRAPHICAL CALIBRATION APPROACH Kongsberg Simrad AS - Training Department LBL Calibration - page 24

13 OPEN FILE WITH CONFIGURED TRANSPONDERS Kongsberg Simrad AS - Training Department LBL Calibration - page 25 DEFAULT PARAMETERS Kongsberg Simrad AS - Training Department LBL Calibration - page 26

14 ARRAY RADIUS AS MARKER Kongsberg Simrad AS - Training Department LBL Calibration - page 27 ARRAY RADIUS AS MARKER Kongsberg Simrad AS - Training Department LBL Calibration - page 28

15 DEPLOY AND MONITOR TRANSPONDER Kongsberg Simrad AS - Training Department LBL Calibration - page 29 DEPLOY AND MONITOR TRANSPONDER Kongsberg Simrad AS - Training Department LBL Calibration - page 30

16 SSBL POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 31 OPEN NEW LBL ARRAY WIZARD Kongsberg Simrad AS - Training Department LBL Calibration - page 32

17 PREPARE LBL CALIBRATION Kongsberg Simrad AS - Training Department LBL Calibration - page 33 LBL CHANNELS Kongsberg Simrad AS - Training Department LBL Calibration - page 34

18 MEASURE BASELINES OR NOT Kongsberg Simrad AS - Training Department LBL Calibration - page 35 SET POSITION MODE Kongsberg Simrad AS - Training Department LBL Calibration - page 36

19 ARRAY PREPARED FOR POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 37 LOCATIONS AND ERROR ELLIPSIS Kongsberg Simrad AS - Training Department LBL Calibration - page 38

20 OPEN LBL POSITIONING DIALOG Kongsberg Simrad AS - Training Department LBL Calibration - page 39 LBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 40

21 INITIAL AND CALIBRATED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 41 TRANSPONDER ARRAY PARAMETERS Kongsberg Simrad AS - Training Department LBL Calibration - page 42

22 MEASURED BASELINES DETAILS Kongsberg Simrad AS - Training Department LBL Calibration - page 43 POSITION SETUP Kongsberg Simrad AS - Training Department LBL Calibration - page 44

23 OPEN LBL RUNTIME CALIBRATION Kongsberg Simrad AS - Training Department LBL Calibration - page 45 START AND STOP LOGGING Kongsberg Simrad AS - Training Department LBL Calibration - page 46

24 CALCULATE BUTTON Kongsberg Simrad AS - Training Department LBL Calibration - page 47 MEASUREMENT RESIDUALS Kongsberg Simrad AS - Training Department LBL Calibration - page 48

25 RESULT OF CALCULATION - POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 49 RESULT OF CALCULATION - 1 SIGMA OF POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 50

26 GRAPHICALLY PRESENTATION OF MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 51 GRAPHICALLY PRESENTATION OF MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 52

27 UPDATE LBL ARRAY WITH SUGGESTED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 53 LAST UPDATE INFORMATION Kongsberg Simrad AS - Training Department LBL Calibration - page 54

28 LBL POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 55 BLANK PAGE FOR SPECIAL PRINT-OUTS Kongsberg Simrad AS - Training Department LBL Calibration - page 56

29 INITIAL AND CALIBRATED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 57 TRANSPONDER ARRAY PARAMETERS Kongsberg Simrad AS - Training Department LBL Calibration - page 58

30 MEASURED BASELINES DETAILS Kongsberg Simrad AS - Training Department LBL Calibration - page 59 POSITION SETUP Kongsberg Simrad AS - Training Department LBL Calibration - page 60

31 OPEN LBL ARRAY DATA DIALOG Kongsberg Simrad AS - Training Department LBL Calibration - page 61 CALIBRATED TO INITIAL POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 62

32 CHANGE ERROR ELLIPSIS FOR ALL LOCATIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 63 LBL CALIBRATION MODE Kongsberg Simrad AS - Training Department LBL Calibration - page 64

33 BASELINE MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 65 BASELINE MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 66

34 BASELINE MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 67 BASELINE MEASUREMENTS Kongsberg Simrad AS - Training Department LBL Calibration - page 68

35 CALUCLATE CALIBRATED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 69 DECIDE ERROR ELLIPSE CALCULATION METHOD Kongsberg Simrad AS - Training Department LBL Calibration - page 70

36 CALIBRATED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 71 INITIAL AND CALIBRATED POSITIONS Kongsberg Simrad AS - Training Department LBL Calibration - page 72

37 LBL POSITION MODE Kongsberg Simrad AS - Training Department LBL Calibration - page 73 ACTIVATE LBL POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 74

38 LBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 75 LBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 76

39 MULBL SETUP In a multi user long base line array one extra transponder is normally included in the LBL array The local calibration will be done as with a normal array Kongsberg Simrad AS - Training Department LBL Calibration - page 77 MASTER AND BACKUP MASTER TRANSPONDER Kongsberg Simrad AS - Training Department LBL Calibration - page 78

40 TAD & LIC Kongsberg Simrad AS - Training Department LBL Calibration - page 79 POSITION INTERVALS Kongsberg Simrad AS - Training Department LBL Calibration - page 80

41 MULBL POSITION MODE Kongsberg Simrad AS - Training Department LBL Calibration - page 81 ACTIVATE MASTER TRANSPONDER Kongsberg Simrad AS - Training Department LBL Calibration - page 82

42 ACTIVATE MULBL POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 83 MULBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 84

43 DUAL MULBL SETUP The vessel has two HiPAP transceivers and transducers You want each HiPAP to calculate a MULBL position Kongsberg Simrad AS - Training Department LBL Calibration - page 85 ACTIVATE DUAL MULBL POSITIONING Kongsberg Simrad AS - Training Department LBL Calibration - page 86

44 DUAL MULBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 87 DUAL MULBL POSITIONING SCREEN DUMP Kongsberg Simrad AS - Training Department LBL Calibration - page 88

45 RECOVER ARRAY TRANSPONDERS Read battery status for all transponders in the array Kongsberg Simrad AS - Training Department LBL Calibration - page 89 RECOVER ARRAY TRANSPONDERS Stop LBL/MULBL positioning Set all transponders in SSBL mode Kongsberg Simrad AS - Training Department LBL Calibration - page 90

46 RECOVER ARRAY TRANSPONDERS Release the transponders one by one Monitor the position as it floats up to the surface - it might drift off Kongsberg Simrad AS - Training Department LBL Calibration - page 91 RECOVER ARRAY TRANSPONDERS Kongsberg Simrad AS - Training Department LBL Calibration - page 92