Moog Crossbow NAV440 Series - Manual (Page 22)

Page 22
NAV440 User Manual
7430‐0131‐01 Rev. F
Figure 3 440 Series Functions
NAV Function AHRS Function
Magnetometer
heading
accels, rates,
mags, attitude,
, ,
Accelerometer Accelerometer tilt
Correction algorithm
Roll/pitch heading velocity
Attitude propagation
100 Hz
∑
Magnetometer
heading
accels, rates, MAGS, attitude,
velocity, GPS position
, ,
Accelerometer Accelerometer tilt
Correction algorithm
Roll/pitch heading velocity
Attitude and velocity
propagation 100 Hz
∑
GPS velocity
VG Function with External GPS VG Function
Accelerometer
?
GPS velocity
Accelerometer tilt
Correction algorithm
Roll/pitch heading velocity
∑
accels, rates, attitude,
velocity, GPS position Attitude and velocity
propagation 100 Hz
Correction algorithm
Roll/pitch heading velocity
Accelerometer Accelerometer tilt
∑
Attitude propagation
100 Hz
accels, rates,
attitude,
(heading/yaw free
440 Series Default Coordinate System
The 440Series Inertial System default coordinate system is shown in below. The coordinate system is
configurable with either NAV‐VIEW 2.2 or by sending the appropriate serial commands. This section of the manual
describes the default coordinate system settings of the unit when it leaves the factory. For information about
configuring the 440 Series unit, refer to Chapter 7. Configuring the 440 Series with NAV‐VIEW 2.2and Chapter 10.
Figure4
Programming Guidelines.
With the 440 Series connector facing you and the mounting plate down, the axes are defined as shown below:
Figure 4 440 Series Default Coordinate System
X­axis: from face with connector through the unit
Y­axis: along the face with connector from left to right
Z­axis: along the face with the connector from top to bottom