Moog Crossbow GNAV540 - Manual (Page 80)

Page 80
GNAV540 User Manual
7430‐0808‐01 Rev. B
Table 50 N1 Payload
N1 Payload Contents
Byte
fset Of
Name Format Scaling Units Description
0 rollAngle I2 2*pi/2^16
) (360°/2^16
Radians
(°) Roll angle
2 pitchAngle I2 2*pi/2^16
) (360°/2^16
Radians
(°) Pitch angle
4 yawAngleTrue I2 2*pi/2^16
) (360°/2^16
Radians
(°) Yaw angle (true north)
6 xRateCorrected I2 7*pi/2^16
6) (1260°/2^1
rad/s
) (°/sec
X angular rate corrected
8 yRateCorrected I2 7*pi/2^16
6) (1260°/2^1
rad/s
) (°/sec
Y angular rate corrected
10 zRateCorrected I2 7*pi/2^16
^16) (1260°/2
rad/s
/sec) (°
Z angular rate corrected
12 xAccel I2 20/2^16 g X accelerometer
14 yAccel I2 20/2^16 g Y accelerometer
16 zAccel I2 20/2^16 g Z accelerometer
18 nVel I2 512/2^16 m/s North velocity
20 eVel I2 512/2^16 m/s East velocity
22 dVel I2 512/2^16 m/s Down velocity
24 longitudeGPS I4 2*pi/2^32
) (360°/2^32
Radians
(°) GPS Longitude
28 latitudeGPS I4 2*pi/2^32
) (360°/2^32
Rad ians
(°)
GPS Latitude
32 altitudeGPS I2* 2^14/2^16 m GPS altitude (‐100,16284)
34 xRateTemp I2 200/2^16 deg C X rate sensor temperature
36 timeITOW U4 1 ms DMU ITOW (sync to GPS)
40 BITstatus U2 — — Master BIT and Status
Nav Data Packet 3 (default packet)
Table 51 Data Packet
Nav Data (‘N3’ = 0x4E33)
Preamble Packet Type Length Payload Termination
0x5555 0x4E33 0x30 <N3 payload> <CRC (U2)>