Jackson Labs RSR GNSS Transcoder, Руководство пользователя

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RSR GNSS Transcoder™ User Manual
X, Y, and Z speed are individually given, and are independent of each other. An accuracy estimate in
centimeters per second is also given. The velocity data is time-stamped using the time-of-week with
a resolution of milliseconds.
Additionally, the number of accrued Leapseconds is indicated in this message, which allows proper
calculation of GPS time from UTC time as indicated by other messages, as well as proper handling
of Leapsecond events.
Use the following format to generate the velocity vector every N seconds, with N in the interval
[0,255]:
GPS:XYZSPeed <int> [0,255]
This command is only supported with an external uBlox GNSS receiver.
4.10.12 GPS:HEIGHT:MSL?
This query returns the Mean Sea Level height in meters which differs from the GPS ellipsoid height
by up to +/-100 meters. This difference varies depending upon the simulated location. The MSL to
GPS height differences are calculated by the internal uBlox GNSS monitoring receiver, and reported
based on the height delta at the simulated GPS position.
4.10.13 GPS:HEIGHT:GPS?
This query returns the height above the GPS ellipsoid in meters at the currently simulated GPS
position.
4.10.14 GPS:HEIGHT?
This command returns the output from the following queries:
GPS:HEIGHT:MSL?
GPS:HEIGHT:GPS?
4.10.15 GPS:DYNAMic:MODE
This command allows the user to select the dynamic motion model being applied to the Kalman
filters in the GNSS receiver. This allows for larger amounts of filtering for lower velocity
applications, effectively reducing noise and multipath interference. Applications with high
acceleration or velocity can then be used with fast filter settings to allow for the most accurate GNSS
coordinates to be provided in high-dynamic applications such as Jet aircraft. Doppler tracking is
enabled in all airborne modes, as Carrier Phase tracking is very difficult to achieve in high velocity
applications. The GNSS receiver will perform Carrier Phase tracking for non-airborne modes.
The command has the following syntax:
GPS:DYNAMic:MODE <int> [0,8]
Sending the following command to the RSR GNSS Transcoder will select a stationary GNSS
dynamic model for example:
gps:dynam:mode 1