Triton Perspective - Manual (Page 89)

81 | P a g e F e b r u a r y 2 0 1 1
Heading:
- Compute CMG - Check the box to compute a heading from the Course Made Good
(navigation)
- Bias - Apply a single bias to the computed CMG heading
- Change Cutoff - Cutoff value for CMG calculation (in degrees)
Layback:
- Source
 None - Do not apply a layback
 Computed - Computes a layback using the values found in the XTF file for Cable Out,
Towfish Depth, Towpoint Height, and Towpoint offset from the navigation antenna
 Manual - Enter a fixed layback value (in meters)
- Tow Point Offsets - Applies the user-defined values in crossbeam direction.
- Time Delay - Static time delay (in seconds)
Offsets:
- Applies user - Defined value in X, Y relative to position.
 +X equals Starboard, -X equals Port
Speed:
- Filter Speed - Turns the option on
 Min - Enter the minimum expected speed
 Max - Enter the maximum expected speed
 Change Cutoff - Cutoff value for speed filter (in knots)
Compute:
 Never - Use the speed from the XTF file
 Always - Ignore existing speed and re-compute
 When Zero - Only computes speed if the value in the file is zero
Mag Heading Deviation:
- On - Turns the option on
- 0, 90, 180, 270: Enter the corrected heading for each of cardinal compass points. The
mosaic engine will generate a smoothed correction curve interpolating between these values.