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Kongsberg Maritime
Kongsberg Simrad AS - Training Department LBL Calibration - page 1
LBLCALIBRATION
Kongsberg Maritime
Kongsberg Simrad AS - Training Department LBL Calibration - page 2
INTRODUCTION
The purpose of this section is to give you some of the theoreticalbackground information needed for LBL calibration and MULBL setup
The section is written for general operation and you might thereforefind topics not relevant for your use of the system
Note that file names, water depths, channel numbers, values in defaultparameters, interrogation interval, and other settings might be differentin live operations than in the screen dumps in this section
Note that the screen dumps in this training manual are taken withdifferent APOS software versions and not necessarily fit the softwareyou have on-board or in a standard APOS Trainer
Special simulator and setting files must be installed on an APOS Trainerto get the same screen dumps as in this section
Kongsberg Maritime
Kongsberg Simrad AS - Training Department LBL Calibration - page 3
DOCUMENT LOGISTICS
Revision Date Written by— A 25.09.00 TOS— B 18.01.01 TOS— C 03.04.01 TOS— D 06.08.01 TOS
History Changes— A First edition— B Minor changes— C Removed slides : Geographical calibration
Removed slides : Error ellipsisNew slides : Recover array transponders
— D New information about LBL runtime calibration and wizardLayout changed to fit new graphical profile
Kongsberg Maritime
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WHAT IS LBL CALIBRATION ?
Long base line calibration is to decide thelocal coordinate system of the transpondersdeployed for use in an LBL array
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CONTENTS
01 Front page02 Introduction03 Document logistics04 What is array calibration ?05-08 Contents09 Planning a LBL array10 Operating area11 Seabed footprint - transducer beams12 Number of transponders13 Surface footprint - narrow beam14 Surface footprint - wide beam15 Array radius - narrow beam transponder16 Array radius - wide beam transponder17 Array geometry18 Transponders with clump weight19 Transponder channels20 Pre deployment check list21 New LBL calibration wizard approach22 LBL runtime calibration approach23 LBL array data approach24 Geographical calibration approach
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CONTENTS
25 Open file with configured transponders26 Default parameters27-30 Array radius as marker31 SSBL positioning32 Open New LBL calibration wizard dialog33 Prepare LBL calibration34 LBL channels35 Measure baselines or not36 Set position mode37 Array prepared for positioning38 Locations and error ellipses39 Open LBL positioning dialog40 LBL positioning screen dump41 Initial and calibrated positions42 Transponder parameters43 Measured baselines details44 Position setup
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Kongsberg Simrad AS - Training Department LBL Calibration - page 7
CONTENTS
45 Open LBL runtime calibration dialog46 Start and stop log buttons47 Calculate button48 Measurement residuals49 Result of measurements - positions50 Result of measurements - 1 sigma positions51-52 Graphically presentation of calculations53 Update LBL array data with calculated positions54 Last update information55 LBL positioning screen dump56 Blank page for special print-outs57 Initial and calibrated positions58 Transponder parameters59 Measured baselines details60 Position setup61 Open LBL array data dialog62 Calibrated to initial positions63 Change error ellisis for initial positions64 LBL calibration mode65-68 Baseline measurements
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Kongsberg Simrad AS - Training Department LBL Calibration - page 8
CONTENTS
69 Calculate calibrated positions70 Decide error ellipsis calculation method71 Calibrated position72 Initial and calibrated positions73 LBL position mode74 Activate LBL positioning75 LBL positioning screen dump76 LBL positioning screen dump77 MULBL principle78 Master and backup master transponder79 TAD & LIC80 Position intervals81 MULBL position mode82 Activate master transponder83 Activate MULBL positioning84 MULBL positioning screen dump85 Dual MULBL setup86 Activate dual MULBL positioning87 Dual MULBL positioning screen dump88 Dual MULBL positioning screen dump details89-92 Recover array transponders
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PLANNING A LBL ARRAY
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Kongsberg Simrad AS - Training Department LBL Calibration - page 10
OPERATION AREA
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SEABED FOOTPRINT - TRANSDUCER BEAMS
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NUMBER OF TRANSPONDERS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 13
SURFACE FOOTPRINT - WIDE BEAM
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Kongsberg Simrad AS - Training Department LBL Calibration - page 14
SURFACE FOOTPRINT - NARROW BEAM
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ARRAY RADIUS - NARROW BEAM TP
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ARRAY RADIUS - WIDE BEAM TP
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ARRAY GEOMETRY
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Kongsberg Simrad AS - Training Department LBL Calibration - page 18
TRANSPONDERS WITH CLUMP WEIGHT
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LBL TRANSPONDER CHANNELS
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PRE DEPLOYMENT CHECK LIST
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Kongsberg Simrad AS - Training Department LBL Calibration - page 21
NEW LBL ARRAY WIZARD APPROACH
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LBL RUNTIME CALIBRATION APPROACH
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LBL ARRAY DATA APPROACH - STEP BY STEP
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Kongsberg Simrad AS - Training Department LBL Calibration - page 24
GEOGRAPHICAL CALIBRATION APPROACH
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Kongsberg Simrad AS - Training Department LBL Calibration - page 25
OPEN FILE WITH CONFIGURED TRANSPONDERS
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DEFAULT PARAMETERS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 27
ARRAY RADIUS AS MARKER
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Kongsberg Simrad AS - Training Department LBL Calibration - page 28
ARRAY RADIUS AS MARKER
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Kongsberg Simrad AS - Training Department LBL Calibration - page 29
DEPLOY AND MONITOR TRANSPONDER
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DEPLOY AND MONITOR TRANSPONDER
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Kongsberg Simrad AS - Training Department LBL Calibration - page 31
SSBL POSITIONING
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OPEN NEW LBL ARRAY WIZARD
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PREPARE LBL CALIBRATION
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LBL CHANNELS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 35
MEASURE BASELINES OR NOT
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Kongsberg Simrad AS - Training Department LBL Calibration - page 36
SET POSITION MODE
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ARRAY PREPARED FOR POSITIONING
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LOCATIONS AND ERROR ELLIPSIS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 39
OPEN LBL POSITIONING DIALOG
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LBL POSITIONING SCREEN DUMP
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INITIAL AND CALIBRATED POSITIONS
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TRANSPONDER ARRAY PARAMETERS
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MEASURED BASELINES DETAILS
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POSITION SETUP
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OPEN LBL RUNTIME CALIBRATION
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START AND STOP LOGGING
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Kongsberg Simrad AS - Training Department LBL Calibration - page 47
CALCULATE BUTTON
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MEASUREMENT RESIDUALS
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RESULT OF CALCULATION - POSITIONS
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RESULT OF CALCULATION - 1 SIGMA OF POSITIONS
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GRAPHICALLY PRESENTATION OF MEASUREMENTS
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GRAPHICALLY PRESENTATION OF MEASUREMENTS
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UPDATE LBL ARRAY WITH SUGGESTED POSITIONS
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LAST UPDATE INFORMATION
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LBL POSITIONING
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BLANK PAGE FOR SPECIAL PRINT-OUTS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 57
INITIAL AND CALIBRATED POSITIONS
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TRANSPONDER ARRAY PARAMETERS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 59
MEASURED BASELINES DETAILS
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POSITION SETUP
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Kongsberg Simrad AS - Training Department LBL Calibration - page 61
OPEN LBL ARRAY DATA DIALOG
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CALIBRATED TO INITIAL POSITIONS
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CHANGE ERROR ELLIPSIS FOR ALL LOCATIONS
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LBL CALIBRATION MODE
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Kongsberg Simrad AS - Training Department LBL Calibration - page 65
BASELINE MEASUREMENTS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 66
BASELINE MEASUREMENTS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 67
BASELINE MEASUREMENTS
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Kongsberg Simrad AS - Training Department LBL Calibration - page 68
BASELINE MEASUREMENTS
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CALUCLATE CALIBRATED POSITIONS
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DECIDE ERROR ELLIPSE CALCULATION METHOD
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CALIBRATED POSITIONS
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INITIAL AND CALIBRATED POSITIONS
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LBL POSITION MODE
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ACTIVATE LBL POSITIONING
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LBL POSITIONING SCREEN DUMP
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LBL POSITIONING SCREEN DUMP
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MULBL SETUP
In a multi user long base line arrayone extra transponder is normallyincluded in the LBL array
The local calibration will be done aswith a normal array
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MASTER AND BACKUP MASTER TRANSPONDER
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TAD & LIC
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POSITION INTERVALS
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MULBL POSITION MODE
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ACTIVATE MASTER TRANSPONDER
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ACTIVATE MULBL POSITIONING
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MULBL POSITIONING SCREEN DUMP
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DUAL MULBL SETUP
The vessel has two HiPAP®
transceivers and transducers
You want each HiPAP® tocalculate a MULBL position
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ACTIVATE DUAL MULBL POSITIONING
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DUAL MULBL POSITIONING SCREEN DUMP
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DUAL MULBL POSITIONING SCREEN DUMP
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RECOVER ARRAY TRANSPONDERS
Read battery status for all transponders in the array
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RECOVER ARRAY TRANSPONDERS
Stop LBL/MULBL positioning
Set all transponders in SSBL mode
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RECOVER ARRAY TRANSPONDERS
Release the transponders one by one
Monitor the position as it floats up to the surface - it might drift off
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RECOVER ARRAY TRANSPONDERS
