Real-World Environment
Satellite Navigation
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User Manual 1178.6379.02 ─ 01
3. Select
"Antenna Configuration"
.
4. Select "Display > Body Mask".
The default configuration uses favorable conditions: isotropic antennas in open sky
environment.
5. For tests in more challenging environment, perform the following for each antenna:
a) Select "A# > Body Mask > Open Sky > Select Antenna Pattern File > Prede-
fined/User Files" and select the body mask description file.
b) Select "A# > Antenna Pattern > Isotropic > Select Antenna Pattern File > Pre-
defined/User Files" and select the antenna pattern file.
c) Confirm with "Select".
The "Select Antenna Pattern File" displays both, a list of available files and the con-
tent of the selected file.
6. To define which antenna is simulated, for example A1:
b) Option: R&S
SMW-K120
In "System Config > Mode > GNSS Advanced", select "Stream# > A1".
Note:
Switching between the active antenna restarts the simulation.
The display is color coded, where the different power levels are indicated with dif-
ferent colors (see "Legend").
Three files describe an antenna, the body mask
*.body_mask
file, the antenna
pattern
*.ant_pat
file and the phase response
*.phase
file. The latter two files
must have the same filename and must be stored in the same directory. The
*.ant_pat
file describes the power response matrix of each antenna.
With a selected antenna pattern, the R&S
SMW simulates the satellite power and
carrier phase depending on the antenna pattern and attitude parameters.
Antenna Configuration Settings
