© 2017 Jackson Labs Technologies, Inc.
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RSR GNSS Transcoder™ User Manual
4.10.16 GPS:DYNAMic:MODE 8 (Automatic Dynamic Mode)
Automatic Dynamic Mode allows the RSR GNSS Transcoder firmware to automatically configure
an external uBlox GNSS receiver’s Kalman filter parameters based on actual mission velocities and
motion profiles, drastically improving overall performance. The unit will try to set the uBlox GNSS
receiver to the optimal setting for any given velocity. The unit is able to set 7 different modes, as
shown in section
.
The following table shows the Dynamic mode the unit will program into the uBlox GNSS receiver
when Automatic Mode is selected (Dynamic Mode 8).
Table 4.2 Auto Dynamic Mode Switching Rules
In this Automatic mode, the unit will configure the uBlox GNSS receiver based on the actual
vehicle-velocity:
Please note that in order to switch from the Automotive mode into the first Airborne (1g) mode, both
a vehicle velocity greater than 60 knots as well as a climb/descent rate greater than 400 feet per
minute are required. Alternatively, a vehicle velocity of greater than 100 Knots will also initiate a
switch into airborne-1g mode. Without an appropriate climb/descent, the unit will remain in
Automotive mode unless 100 Knots velocity is breached.
The following command returns the setting of the GNSS dynamics model:
GPS:DYNAMic:MODE?
The actual state chosen by the firmware for the GNSS receiver based on vehicle velocity can be
queried with the command:
GPS:DYNAMic:STATe?
A value between 0 and 7 is then returned depending on vehicle dynamics.
Velocity Threshold
Selected Dynamic Model
Fallback to lower setting
0 – 2 knots
Stationary
none
>2 knots
Pedestrian
<1 knots
>10 knots
Automotive
<8 knots
>60 knots and >400 Feet/min
climb/descent
Airborne 1g
<50 knots
>150 knots
Airborne 2g
<130 knots
>240 knots
Airborne 4g
<210 knots
Содержание RSR GNSS Transcoder
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