On Sun, Feb 24, 2013 at 6:36 AM, Manu T S <manu.t.s...@gmail.com> wrote: > I want to use trellis codes along with generic_mod_demod. > > 1. Can I replace the constellation_receiver object with a trellis_metric > followed by a viterbi? If so is it required to have an operation equivalent > to phase correction in constellation_receiver? How can I do that?
constellation_receiver has four optional outputs. The fourth is a phase-corrected complex number. You could use this as the input to your metric calculation. > > 2. There is a function for metric calculation inside constellation_receiver. > Can I use it to implement viterbi? This function is called by trellis.constellation_metrics_cf which generates metrics that you can feed into the viterbi block. Metrics are calculated for every constellation point, so for large constellations the efficiency will be appalling. > > Thanks in advance > > > -- > Manu T S > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
