Dear Cinaed, The costas loop works only with BPSK, QPSK and 8PSK.
Is it possible to change the actual costas loop and add the 16 QAM. Best regards, 2017-07-14 0:46 GMT+02:00 Cinaed Simson <[email protected]>: > 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 > > > > -- <http://www.ece.fr/>Rafik
_______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
