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Spirent KB Article
Doc ID: FAQ15102
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Positioning Application: Is it possible to use output distance between vehicle to GTx?
Scenario with Ground Transmitter (GTx) enabled
GSS7700 variant B, dual antenna model
GSS8000, dual antenna model or custom TS
Yes you can use signal 'Range' information in the data outputs
The GTx is treated by PosApp as a transmitter, i.e. like a satellite.
In this way you can simply rely on PosApp data output for “Range” ("True Range") to know the distance between vehicle and GTx.
a) Use the toolbar buttons to open quick-look display / plot / logging editor, as required
b) Select 'Keyword' = 'Signal'
c) Select 'Paramter' = 'Range'
d) Set 'Tx Type' to the GTx type required
e) 'Add selected' to display / plot / log the data
BULK LOGGING DATA
a) Go to menu [Options-->Bulk logging options]
b) Enable "Satellite data logging"
c) Use the 'Range' column of data, ensuring that you filter the "Sat_type" column for GTx
a) Go to the scenario tree [Options-->Data streaming definition file-->Vehicle-->Antenna]
b) Enable the required GTx signal type
c) Use the 'True range' data, associated to the GTx "Signal type"
Product : SimGEN,PosApp,GSS7700,GSS8000