SBAS Corrections
Satellite Navigation
142
User Manual 1178.6379.02 ─ 01
"Replay Historical Data and Sync Atmosphere & SV Errors"
Corrections are
real data
, retrieved from a predefined or user-defined
*.nstb
or
*.ems
files, usually downloaded from the SBAS server.
The SBAS navigation massage, including all types of correction data
are configurable. You can also define which SBAS messages are
used and how they are scheduled.
The default SBAS corrections correspond to the corrections at the
default simulation time (19.02.2014).
The following corrections are applied:
●
Atmospheric
delays are set to the values retrieved form the
SBAS ionospheric correction data
("Atmospheric" >
●
Satellite biases (
pseudorange biases, clock biases and satel-
lite orbit errors
) of each PRN are set to the values retrieved form
the SBAS fast and long-term correction data.
("Pseudorange Errors" >
= "From SBAS")
This mode can be used if your test scenario requires realistic GNSS
signal or you need to reproduce a historical situation. If the receiver
under test does not support SBAS, this mode can lead to positioning
errors and degraded performance compared to the non-augmented
case.
"Replay Historical Data"
You can load predefined or user-defined
*.nstb
or
*.ems
files.
The SBAS navigation massage, including all types of correction data
are configurable. You can also define which SBAS messages are
used and how they are scheduled.
Corrections are real data, downloaded form the SBAS server. How-
ever, these
corrections do not match the simulated orbit and
clock parameters or the used ionospheric model
.
Remote command:
13.4.2 GEO Ranging Information
The SBAS GEO satellites transmit GPS-L1-like signals to extend the number of visible
satellites. The signals transmitted with this purpose are called ranging signals.
As for any other GNSS satellites, you can configure the simulated ranging information
of the GEO satellites and, if required, change the broadcasted ranging information.
Simulated Orbit and Simulated Clock Settings
..................................................... 143
Broadcasted Orbit, Clock and Time Conversion Settings
.....................................144
SBAS Settings
