Teledyne ADFM Analog Output Module, Техническое руководство, Страница: 96 / 156

Appendix C
Table C-4: Coordinate Transformation Processing Flags
Setting Description
EX00xxx No transformation. Radial beam coordinates, I.E., 1, 2, 3, 4.
Heading/Pitch/Roll not applied.
EX01xxx Instrument coordinates. X, Y, Z vectors relative to the ADFM.
Heading/Pitch/Roll not applied.
EX10xxx Ship coordinates (Note 1) X, Y, Z vectors relative to the ship.
Heading not applied. EA-command used, but not the EB-command.
If Bit 3 of the EX-command is a 1, then Pitch/Roll applied.
EX11xxx Earth coordinates (Note 1) East, North, Vertical vectors relative to
Earth. Heading applied. EA command used. If Bit 3 of the EX-
command is a 1, then Pitch/Roll applied.
EXxx1xx Use tilts (pitch and roll) in transformation (Note 2)
EXxxx1x Allows 3-beam solutions if one beam is below the correlation
threshold set by WC
EXxxxx1 Allow bin mapping
Notes 1. For ship and earth-coordinate transformations to work
properly, you must set HEADING ALIGNMENT (EA) cor-
rectly. You also must ensure that the tilt and heading sensors
are active (EZ).
2. Setting EX bit 3 (Use Tilts) to 1 lets you collect tilt data
without using it in the ship or earth-coordinate transforma-
tions.
3. Each ADFM uses its own beam calibration matrix to cor-
rect data for beam pointing errors (e.g., if the beams errone-
ously point toward 21 deg. instead of 20 deg.). Correction is
applied when the data are converted from beam coordinates to
earth coordinates. If you output beam-coordinate data, you
will need to apply the beam corrections yourself if you want
the best possible data. MGD has no software that uses the
beam calibration matrix to correct data in a personal com-
puter.
page C-16 MGD Technologies, Inc.