diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-08-14 21:00:26 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-08-14 21:00:26 -0400 |
| commit | c537cf7d85f59db21c98ac859bc08fbe55031314 (patch) | |
| tree | fd260f991eeb7fe1e2b7e2c2f781bfa50f6b2704 /gr-digital/lib/digital_kurtotic_equalizer_cc.cc | |
| parent | e45449570984c0a709a21ea5ab078f9747e4b9c5 (diff) | |
digital: converted equalizers and fixed cma equalizer.
Diffstat (limited to 'gr-digital/lib/digital_kurtotic_equalizer_cc.cc')
| -rw-r--r-- | gr-digital/lib/digital_kurtotic_equalizer_cc.cc | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/gr-digital/lib/digital_kurtotic_equalizer_cc.cc b/gr-digital/lib/digital_kurtotic_equalizer_cc.cc deleted file mode 100644 index f10ec83482..0000000000 --- a/gr-digital/lib/digital_kurtotic_equalizer_cc.cc +++ /dev/null @@ -1,87 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2011,2012 Free Software Foundation, Inc. - * - * This file is part of GNU Radio - * - * GNU Radio is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 3, or (at your option) - * any later version. - * - * GNU Radio is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Radio; see the file COPYING. If not, write to - * the Free Software Foundation, Inc., 51 Franklin Street, - * Boston, MA 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <digital_kurtotic_equalizer_cc.h> -#include <gr_io_signature.h> -#include <volk/volk.h> - -digital_kurtotic_equalizer_cc_sptr -digital_make_kurtotic_equalizer_cc(int num_taps, float mu) -{ - return gnuradio::get_initial_sptr - (new digital_kurtotic_equalizer_cc(num_taps, mu)); -} - -digital_kurtotic_equalizer_cc::digital_kurtotic_equalizer_cc(int num_taps, float mu) - : gr_sync_decimator("kurtotic_equalizer_cc", - gr_make_io_signature(1, 1, sizeof(gr_complex)), - gr_make_io_signature(1, 1, sizeof(gr_complex)), - 1), - gr::filter::kernel::adaptive_fir_ccc(1, std::vector<gr_complex>(num_taps, gr_complex(0,0))) -{ - set_gain(mu); - if (num_taps > 0) - d_taps[0] = 1.0; - set_taps(d_taps); - - d_alpha_p = 0.01; - d_alpha_q = 0.01; - d_alpha_m = 0.01; - - d_p = 0.0f; - d_m = 0.0f; - d_q = gr_complex(0,0); - d_u = gr_complex(0,0); - - const int alignment_multiple = - volk_get_alignment() / sizeof(gr_complex); - set_alignment(std::max(1,alignment_multiple)); - set_history(num_taps+1); -} - -int -digital_kurtotic_equalizer_cc::work(int noutput_items, - gr_vector_const_void_star &input_items, - gr_vector_void_star &output_items) -{ - gr_complex *in = (gr_complex *)input_items[0]; - gr_complex *out = (gr_complex *)output_items[0]; - - int j = 0, k, l = d_taps.size(); - for(int i = 0; i < noutput_items; i++) { - out[i] = filter(&in[j]); - - // Adjust taps - d_error = error(out[i]); - for(k = 0; k < l; k++) { - update_tap(d_taps[l-k-1], in[j+k]); - } - - j += decimation(); - } - - return noutput_items; -} |