ULN-2550 User Manual - Jackson Labs Technologies, Inc.

ULN-2550 User Manual
GPS:GYRO:CAL returns the setting of the calibration factors of the accelerometer system.
Due to the nature of the accelerometer chip, the Z axis will have the largest error and lowest
sensitivity of all three axis. The X, and Y axis will have the best resolution and highest sensitivity
when the unit is sitting level (horizontally).
3.3.13 GPS:DYNAMic
This command allows the user to select the dynamic motion model being applied to the Kalmann
filters in the GPS receiver. This allows for larger amounts of filtering for lower velocity applications,
effectively reducing noise. Applications with high acceleration can now be used with fast filter
settings to allow for the most accurate GPS coordinates to be provided in high-dynamic applications
such as Jet aircraft.
Firmware version 1.04 and later add an automated feature where the unit will select the GPS profile
itself based on the unit’s velocity. This alleviates the user from having to track the state of a mission
and manually selecting the best dynamic setting.
The command has the following syntax:
GPS:DYNAMic [0,8]
The following settings are available:
Value Model Application
0 Portable Recommended as a default setting
1 Stationary Used in stationary applications
2 Pedestrian Used in man-pack, pedestrian settings
3 Automotive Vehicular velocity applications
4 Sea Used on Ships, where altitude is expected to be
constant
5 Airborne