gps-sdr-sim icon indicating copy to clipboard operation
gps-sdr-sim copied to clipboard

Doppler values correct?

Open ferorted opened this issue 5 years ago • 2 comments

Hi everyone, I'm testing your code with a Pluto SDR, and works fine with an uBlox GPS receiver. However my phones can't fix a location. Are the follow Doppler values correct?

GPS

Regards

ferorted avatar Feb 26 '20 20:02 ferorted

Check NAV-CLOCK message. You can find the total frequency offset caused by both the receiver and transmitter clocks. This should be typically less than a few ppm.

osqzss avatar Mar 03 '20 03:03 osqzss

Thank you, The read frequency is about 0.0020 ppm

ferorted avatar Mar 06 '20 18:03 ferorted