Harald Welte wrote: > > However, if you do get a working example script or grc graph at some > point, > please make the effort of publishing/posting it so it can be referenced by > others. >
Hi Harald & everyone else with DxPSK issues. After weeks of battling with my simple DQPSK transmitter/receiver, i have finally found the solution. The key was always just to add a packet encoder & decoder. I now receive my input sequence of [01101100] ie 108 Decimal, every time. I have further tried transmitting with DQPSK from a file source [i.e a .dat file containing 20 seconds of music, sampled at 48KHz]. My received file is almost identical with minimal audible noise, and low BER. I will provide source code and GRC flow graphs for both the simulation and actual USRP transmission/reception using both DBPSK & DQPSK in the next day or so. Thank you to everyone for your suggestions, Marcin -- View this message in context: http://old.nabble.com/DQPSK-Modulation-Demodulation-issue-tp28288015p28462231.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
