SeaTrac Serial Command Interface Reference
Page 63
XCVR_ROLL
UINT16
When the AHRS attitude is not used to specify the
transceiver attitude, this value is used as the
manually specified roll attitude from which relative
positions of remote beacons to the local beacon are
computed.
Attitudes are applied in the position calculation
routine via a Direction-Cosine-Matrix, in the Euler
sequence Yaw, Pitch then Roll.
Values are encoded as deci-degrees, so divide the
value by 10 to obtain a value in degrees.
Valid values are clipped to the range -180.0° to
+180.0°.
XCVR_POSFLT_VEL UINT8
The
maximum velocity limit (in metres per second)
that the position filter expects to see a beacon
move at. Position Fix outputs for Beacons that have
moved faster than this in the time between pings
will be marked as a position error.
XCVR_POSFLT_ANG UINT8
For
beacons that are further away, azimuth errors
start to come into play. This value defines the
angular limits that beacons can move (or position
jitter) within without being marked as an error.
Vales are specified in degrees, and typically this
value is 10 degrees.
XCVR_POSFLT_TMO
UINT8
This timeout limit specified in seconds that
maximum time that a beacon is not communicated
with before its position filter is reset, allowing its
next position (what ever that may be) to be
marked as valid.
For example, a value of 60 seconds means that if
no communications have been made with the
beacon for 60 seconds, then its position could be
far outside the limits expected by the position filter,
so allow its position and restart tracking on the
next fix.
6.4.10.
STATUS_BITS_T (Status Fields Bit-Mask)
The Status Flags type is defined as a bit-field stored in a UINT8 value, where one or more bits
(flags) may be set to specify an overall numerical value.
Bits are defined as…
