amaranth_twstft
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oscimp
Software Defined Radio implementation of a Two Way Satellite Time and Frequency Transfer signal
The X310 emits a clean carrier between the time the new bitstream is transferred. While this could be considered as a feature, it induces unwanted transmission to the upconverter. 1/...
At the moment each iteration is independent of the previous ones and no assumption on the stability of the signal is done. The correlation calculation as ``iFFT(FFTxFFT*)`` on an N-long...
The X310 clocked by the reference 10 MHz exhibits a -4.5 Hz frequency offset despite the transmitted signal (GPIO output) to be exactly at 70 MHz (checked against reference source)....
The FFT on the squared signal provides a rough estimate of the frequency offset while phase slope should provide a fine frequency offset estimate. 1/ the squared signal exhibits many...