R&S SMW-K44, User Manual

Page: 184 / 455

Assistance Data Generation Satellite Navigation
184 User Manual 1178.6379.02 ─ 01
Parameter Description
"Longitude" Sets the longitude of the reference location.
"Uncertainty Radius" Sets the maximum radius of the area within which the two-dimensional loca-
tion of the UE is bounded.
The uncertainty radius determines the required sensitivity of the DUT.
Remote command:
[:SOURce<hw>]:BB:GNSS:ADGeneration:GPS:COORdinates:FORMat
on page 364
To enter the coordinates in Degree:Minute:Second format
[:SOURce<hw>]:BB:GNSS:ADGeneration:GPS:LOCation:COORdinates:
DMS[:WGS]
on page 366
(etc. for the other GNSS systems)
To enter the coordinates in decimal degree format
[:SOURce<hw>]:BB:GNSS:ADGeneration:GPS:LOCation:COORdinates:
DMS[:WGS]
on page 366
(etc. for the other GNSS systems)
File Generation
Each of the provided function triggeres the generation of the respective file:
Almanac ← File Generation
Access the standard "File Select" dialog for file handling.
Set the filename; the data format is defined with the parameter Navigation Data For-
mat .
The almanac file is generated in one of following file formats:
●
Comma-separated file format
.rs_al
(see Table 16-1 )
●
Standard Yuma formatted file
.rs_yuma
– This file format is not supported for A-GLONASS.
– In case of GPS, Galileo, QZSS and BeiDou the
.rs_yuma
almanac file can be
used as the main almanac source for the specific GNSS standard.
Table 16-1: Contents of the generated almanac file (GPS)
Parameter Unit
SatID -
e Dimensionless
toa sec
delta_i Semi-circles
OMEGADOT semi-circles/sec
SV Health Boolean
SQRT(A) meters
OMEGA0 Semi-circles
M0 Semi-circles