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# GPS test setup
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Testing the GPS receiver using GPS spoofing. At the moment only
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static location relpay is supported.
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# Usage
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on C3 run `rpc_server.py`, on host PC run `fuzzy_testing.py`
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`simulate_gps_signal.py` downloads the latest ephemeris file from
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https://cddis.nasa.gov/archive/gnss/data/daily/20xx/brdc/.
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# Hardware Setup
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* [LimeSDR USB](https://wiki.myriadrf.org/LimeSDR-USB)
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* Asus AX58BT antenna
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# Software Setup
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* https://github.com/myriadrf/LimeSuite
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To communicate with LimeSDR the LimeSuite is needed it abstracts the direct
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communication. It also contains examples for a quick start.
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The latest stable version (22.09) does not have the corresponding firmware
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download available at https://downloads.myriadrf.org/project/limesuite. Therefore
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version 20.10 was chosen.
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* https://github.com/osqzss/LimeGPS
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Built on top of LimeSuite (libLimeSuite.so.20.10-1), generates the GPS signal.
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```
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./LimeGPS -e <ephemeris file> -l <location coordinates>
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# Example
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./LimeGPS -e /pathTo/brdc2660.22n -l 47.202028,15.740394,100
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```
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