Applanix POS MV V4 - Table 1: System Performance

POS MV V4 User Guide
Introduction
Copyright © Applanix Corporation, 2009
1-9
Table 1: System Performance
Parameter Without GAMS With GAMS
Heading
accuracy:
0.2° to 2.0° RMS after POS
MV achieves full alignment
(depending on the nature of
vessel manoeuvres).
Heading accuracy degrades
at latitudes above 50°.
0.02° (0.03° for the
WaveMaster), or better,
independent of vessel
manoeuvres and latitude.
POS MV tolerates GAMS
outages lasting several tens
of minutes with no significant
degradation of heading
accuracy.
Alignment
time:
Heading alignment can take
as long as 30 minutes.
Alignment occurs within two
to five minutes.
Vessel
manoeuvres:
More frequent vessel
manoeuvres will improve the
accuracy of heading
measurements. To obtain a
faster alignment and better
accuracy the vessel must
perform a calibration
manoeuvre at intervals of ten
minutes or less.
Accuracy is independent of
vessel manoeuvres.
Follow the instructions in the Installation Parameters description on page 2-38
to measure the mounting angles of the IMU, vessel and multi-beam
transducer relative to the reference frame that you have defined. Refer to the
POS MV Configuration description on page 4-11 for instructions to configure
POS MV with these important parameters.
When correctly configured with this information, POS MV delivers
measurements for use by the multi-beam transducer, compensated for any