Demodulate and decode the 4800bps SDPSK ORBCOMM downlink from FM audio
orbcomm_recv.grc is a GNU Radio flowgraph meant to take the NFM demodulated signal from an SDR, most convienently through a Virtual Audio Cable.
orbcomm.py inputs symbols from the GNU Radio flowgraph over UDP, default port 10000 and then outputs the decoded packet content to stdout.
- numpy
- more_itertools
- pyproj