R&S SMW-K106, Руководство пользователя

Страница: 390 / 455

User Environment Files Satellite Navigation
390 User Manual 1178.6379.02 ─ 01
Annex
A User Environment Files
The R&S SMW supports different file formats that describe a moving receiver. This
section focus on:
● Movement or Motion Files .....................................................................................390
● Vehicle Description Files (Used for Smoothening) ................................................399
● Antenna Pattern and Body Mask Files ..................................................................401
A.1 Movement or Motion Files
A.1.1 Waypoint File Format
A waypoint file is a simple text file (
*.txt
) that describes a trajectory as a sequence of
positions called waypoints. The file contains a resolution [ms] that give the time
between two consecutive waypoints and a list of waypoint coordinates, one row per
waypoint.
Each waypoint is specified with its longitude [° (decimal format)], latitude [° (decimal
format)], altitude [m], see
Example "3GPP Performance Test Scenario#3 "Melbourne"
(WGS84 geodetic coordinates)" on page 390.
If the defined resolution is different than the internally used resolution of 10 ms, the
waypoint file is resampled and the waypoints linearly interpolated. For more informa-
tion, see
Chapter A.1.5, "Resampling Principle" , on page 398.
Example: 3GPP Performance Test Scenario#3 "Melbourne" (WGS84 geodetic
coordinates)
The resolution command at the beginning of the file specifies the time (in ms) between
two consecutive waypoints. In this example, it is 50 ms. The value is different than 10
ms; the waypoint file is resampled.
RESOLUTION: 50
144.966666334601,-37.8166633061788,100.000000009313
144.966662392613,-37.8166632247233,100.000000039116
144.966658453002,-37.8166630889914,100.00000008475
144.966654516955,-37.8166628990241,100.000000149943
144.966650585658,-37.8166626548785,100.000000235625
144.966646660296,-37.8166623566284,100.000000339001
...
etc.
Movement or Motion Files