diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-03-15 20:49:05 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-03-15 20:49:05 -0400 |
| commit | 3d38e82e7d87dfc01132b199e33b53add8a706fa (patch) | |
| tree | af4545bcf3cea24dc30571601116a3a89381ad5d /gr-atsc/include/atsc/equalizer_lms2_impl.h | |
| parent | 39ff6d4814c858f2dbaf3c8007940872c46d6c95 (diff) | |
atsc: adjustments to atsc to start to conform to v3.7 structure.
Not going to comply completely with the new structure; just wanted to get it so that it looked more consistent once installed.
Diffstat (limited to 'gr-atsc/include/atsc/equalizer_lms2_impl.h')
| -rw-r--r-- | gr-atsc/include/atsc/equalizer_lms2_impl.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gr-atsc/include/atsc/equalizer_lms2_impl.h b/gr-atsc/include/atsc/equalizer_lms2_impl.h new file mode 100644 index 0000000000..ebd6c13d0f --- /dev/null +++ b/gr-atsc/include/atsc/equalizer_lms2_impl.h @@ -0,0 +1,80 @@ +/* -*- c++ -*- */ +/* + * Copyright 2002 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. + */ + +#ifndef _ATSC_EQUALIZER_LMS2_H_ +#define _ATSC_EQUALIZER_LMS2_H_ + +#include <atsc/api.h> +#include <atsc/equalizer_impl.h> +#include <vector> +#include <stdio.h> + +class ATSC_API atsci_equalizer_lms2 : public atsci_equalizer +{ +public: + atsci_equalizer_lms2 (); + virtual ~atsci_equalizer_lms2 (); + + virtual void reset (); + virtual int ntaps () const; + virtual int npretaps () const; + +protected: + FILE *trainingfile; + virtual void filter_normal (const float *input_samples, + float *output_samples, + int nsamples); + + virtual void filter_data_seg_sync (const float *input_samples, + float *output_samples, + int nsamples, + int offset); + + virtual void filter_field_sync (const float *input_samples, + float *output_samples, + int nsamples, + int offset, + int which_field); + +private: + std::vector<double> d_taps_ff; + std::vector<double> d_taps_fb; + std::vector<float> d_old_output; + + int d_output_ptr; + + void filterN (const float *input_samples, + float *output_samples, + int nsamples); + + void adaptN (const float *input_samples, + const float *training_pattern, + float *output_samples, + int nsamples); + + float filter1 (const float input[]); + float adapt1 (const float input[], float ideal_output); + +}; + + +#endif /* _ATSC_EQUALIZER_LMS2_H_ */ |