Orolia GSG-5 Series, User Manual With Scpi Manual, Page: 84 / 392

Figure 3-16:
Base station configuration dialog
The following Base station settings can be reviewed/configured:
RTCM version
The RTCM SC-104 version currently supported is Ver. 3.2. This cannot be changed.
For more information on RTCM standards, see: www.navipedia.net/index.php/RTK_
Standards .
Message type
Message types 1002, 1004, 1006, 1010, 1012 and 1033 are supported.
Latitude, Longitude, Altitude
Enter the base station coordinates, using latitude, longitude, and altitude. As with Start pos-
ition coordinates, the
format key can be used to switch between different coordinate
formats.
Once a scenario is running, and the base station has been activated, the SCPI command
SOUR:SCEN:RTCM?
can be used to query the GSG for the latest RTCM messages (update
rate of 1Hz), as previously configured. The output will be a hexadecimal string.
3.5.9.4 Environment models
Environmental Models allow GSG to simulate signal obscuration . (This feature is sup-
ported as of software versions 6.1 and higher).
Scenarios utilizing signal obscuration simulate the blocking of GNSS signals by objects
placed along the trajectory route. Typical use cases are the simulation of urban "canyons",
tunnels, etc.
Environmental models in GSG simulators are supported through compressed keyhole
markup language files (kmz), popularized by Google Earth™. A simple way to create these
files is by using the 3D drawing tool SketchUp™, available from Trimble Navigation Limited:
www.sketchup.com
.
Two kinds of models can be configured in a scenario, Vehicle model and Environment
model:
Environment model
An environment model is a 3D model of the environment, e.g., buildings, ground, etc. All
environment models used must have a
geo-location added to them before they can be
used for simulation purposes.
Vehicle model
68 User Manual GSG-5/6 Series Rev. 27
3.5 "Select" Menu