Triton BathyPro - Manual (Page 106)

TABLE 5. Patch test results, cumulatively tracked over time
Time File
Name
Heading Speed Patch
Test
Segment
Run
Number Comments
1345 198-1345 320 4.2 ROLL 1
1352 198-1352 140 4.1 ROLL 1
1356 198-1356 320 4.1 ROLL 2
1401 198-1401 140 4.1 ROLL 2
1405 198-1405 277 4.1 PITCH 1 large rock in
area
1409 198-1409 106 4.2 PITCH 1
1417 198-1417 277 4.1 PITCH 2 line can be
used for yaw
Using Sidescan Sonar Imagery to Determine Latency
If your sonar has a sidescan option, you can use its imagery to determine latency
using the Latency with Side Scan Imagery Data option in BathyPro’s Patch test
menu. When passing a strong point target, a sidescan sonar will generate a
hyperbola that is visible in the imagery. The apex of the hyperbola accurately
represents the position of the target, even if the target itself is too small to be
clearly imaged. Advanced imaging techniques can detect these hyperbolas in the
background noise. Having detected the hyperbola, the software automatically
finds the position of the apex.
You use contact images, which are the output from TEI’s Target or TargetPro
application. (Target and TargetPro are utilities that are sometimes used with
TEI’s Isis Sonar acquisition software.) The contact files and their parent XTF files
must reside in the same directory for the patch test. Also, the two file types (CON
and XTF) must share the same primary file name, so that the system knows how
to pair which CON file with which XTF file when the system plots the latency
using the hyperbola method.
June 2004 BathyPro User’s Manual 106