On 11.11.2015 01:14, w xd wrote: > I have look at the api, and find 4 class about the ofdm equalizer， > > ofdm_equalizer_1d_pilots, > ofdm_equalizer_base,ofdm_equalizer_simpledfe,ofdm_equalizer_static.
These are different implementations, and are dropped into the actual equalizer block (a bit like gr-fec works). > 1.Can someone tell their difference and relation. Check out their documentations. They implement different algorithms. > 2.I look at the ofdm_frame_equalizer_vcvc_impl.cc. > > and the code > > " d_eq->reset(); > d_eq->equalize(out, frame_len, d_channel_state); > d_eq->get_channel_state(d_channel_state); > > " > I know the ofdm grc example use the ofdm_equalizer_simpledfe.Can > someone tell me the reason of ofdm_equalizer_simpledfe?It's base on LS > or MMSE or others?Can someone give a reference about the > ofdm_equalizer_simpledfe. It's based on a zero-forcing approach, but it updates channel estimates while equalizing (hence dfe == decision-feedback equalizer). M _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
