On 02/07/2017 01:55 PM, Minh Pham wrote: > Dear Martin Braun, > > Thank you very much for such quick response, I really appreciate that. I > wish to clarify several things: > - By "Differential modulation", do you mean that in my case, I should use > Differential Quadrature Phase Shift Keying (DQPSK)?
Yep! > - For the more sophisticated option, can you give me a hint where to start? Well, you need to figure out what your actual phase is. So, you need a preamble, and then need something else to pick one of the four rotations. And then you need to feed that into the demod. -- M > > Sincerely, > Minh. > > > > -- > View this message in context: > http://gnuradio.4.n7.nabble.com/QPSK-modulation-and-demodulation-using-PSK-mod-and-demod-blocks-tp62774p62782.html > Sent from the GnuRadio mailing list archive at Nabble.com. > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
