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osqzss / gps-sdr-sim

Software-Defined GPS Signal Simulator
MIT License
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No Position Fix with PLUTO SDR Hardware #285

Closed atchyuth-rao closed 3 years ago

atchyuth-rao commented 3 years ago

Good Morning,

I have generated GPS signal samples i.e gpssim.bin file using GPS-SDR-sim, I have a PLUTO SDR card with that card I am generating GPS signal(using gpssim.bin file) I have observed signal spectrum In spectrum analyzer it is coming properly but when I tested with GPS Receiver I am not getting Stable satellite C/N ratio(Satellites are acquired in Receiver but their C/N ratios are changing abruptly), I am generating a signal with 300sec duration with -100dbm channel power, I am getting position fix once in 300sec and gone.

anyone can help me out to resolve this issue, it will be grateful to me.

the experiment setup is

host pc(linux) --> PLUTO SDR card(v0.32) --> GPS Receiver(ublox-8)

Shangu-xsg commented 3 years ago

Hello, I met the same problem, did you solve it?