On 07/13/2017 06:16 AM, Rafik ZITOUNI wrote: > Dear Cinaed, > > But how to see the constellations of my received symbols since > constellation receiver and constellation decoder have a byte as an output. > > Is it possible to have a costas loop for QAM 16?
I use the Polyphase Clock Sync. In the tutorial 7, they use a channel model Const. Demod -> Channel Model-> Polyphase Clock -> CMA Equalizer -> Costa Loop -> Demodulator and put the Constellation Sink on the output of the Costa Loop. -- Cinaed > > Thanks, > > 2017-07-13 1:30 GMT+02:00 Cinaed Simson <[email protected] > <mailto:[email protected]>>: > > On 07/12/2017 09:55 AM, Rafik ZITOUNI wrote: > > Dear Cinaed, > > > > Thanks for your answer. > > > > I tried with my Tx and it works fine with a constellation, but with my > > receiver symbols or constellation_decoder, digital.qam_16()[1] gives me > > an error. > > I'm using the Constellation Modulator/Constellation Decoder pair and the > Constellation Object with Type=Variable Constellation. > > The same object is used for both the Constellation Modulator and the > Constellation Decoder. > > When I look inside the Constellation Decoder there's nothing to > configure. > > Maybe you're doing things differently. > > -- Cinaed > > > > > line 164, in __init__ > > self.digital_constellation_decoder_cb_0_0 = > > digital.constellation_decoder_cb(digital.qam_16()[1]) > > > > Best, > > > > > > > > > > 2017-07-12 2:26 GMT+02:00 Cinaed Simson <[email protected] > <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>>: > > > > On 07/11/2017 05:13 AM, Rafik ZITOUNI wrote: > > > Dear gnuradio users, > > > > > > I am trying to use digital_chunks_to_symbols to reconstruct block > by > > > block my QAM modulator. > > > > > > Please could you give me an idea how to set the constellation > points in > > > Symbol Table field? I can do it with BPSK, QPSK and 8PSK using > > > constellation[0].points, constellation[1].points and > > > constellation[2].points, but how can I do it with 16 QAM ? > > > > Try > > > > Symbols: digital.qam_16()[1] > > Constellations: digital.qam_16()[0] > > > > -- Cinaed > > > > > > > > > > For my 16 QAM receiver, could you please tell me if it's possible > to > > > have a constellation points view? > > > > > > Best, > > > > > > -- > > > **<http://www.ece.fr/>Rafik > > > > > > > > > > > > _______________________________________________ > > > Discuss-gnuradio mailing list > > > [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> > > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio>> > > > > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > [email protected] <mailto:[email protected]> > <mailto:[email protected] <mailto:[email protected]>> > > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio> > > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > <https://lists.gnu.org/mailman/listinfo/discuss-gnuradio>> > > > > > > > > > > -- > > **<http://www.ece.fr/>Rafik > > > > > > > -- > **<http://www.ece.fr/>Rafik > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
