Dear list and Josh, I'm still getting this error when using the QAM Demod block (qamX_demod is not connected internally). Are there any new developments concerning these blocks?
Vlad. Josh Blum-2 wrote: > > Well, when you receive a qam signal, and lock to it, you still have some > unknown phase offset. Lets suppose qam8 has two possible phases: 0 and > 180 degrees. Since you don't know which phase is correct, you can look > for the packet header in the received signal at 0 degrees and > simultaneously at 180 degrees. Whichever phase offset yields a valid > packet is the winner. Of course, this all assumes that you are framing > your data with some kind of packet headers. > > Anyone else have some qam demodulation ideas to share? > > -josh > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- View this message in context: http://old.nabble.com/QAM-demod-Error-in-GRC-tp23722153p31655276.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
