JW Fishers SSS-100K PC Operation And Maintenance Manual page 33

Side scan sonar
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Target Height Measurement
The Target Height measurement tool allows you to measure the height of a
scanned object. To measure the height of an object:
1. Click Measure Target Height toolbar button
The Measure Target Height Dialog box pops up and walks you through measuring
the target height. The current step required to measure the Target height is high-
lighted in black text. All other instructions are grayed out. As you completed one
instruction that instruction is grayed out and the net instruction is highlighted in black
text. The target height will be displayed in the box at the bottom of the Measure
Target Height Dialog.
Three markers will be displayed. Finetune by dragging the first marker (left one on
example below) to the first bottom return, the middle marker to the beginning of the
shadow and the third marker to the end of the shadow
Example of Target Height Measurement indicators placed on analog signal display
Example of Target Height Measurement indicators placed on Sonar Image
33

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