3 * Copyright 2002 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef _ATSC_EQUALIZER_LMS_H_
24 #define _ATSC_EQUALIZER_LMS_H_
26 #include <atsci_equalizer.h>
30 class atsci_equalizer_lms : public atsci_equalizer
33 atsci_equalizer_lms ();
34 virtual ~atsci_equalizer_lms ();
36 virtual void reset ();
37 virtual int ntaps () const;
38 virtual int npretaps () const;
42 virtual void filter_normal (const float *input_samples,
43 float *output_samples,
46 virtual void filter_data_seg_sync (const float *input_samples,
47 float *output_samples,
51 virtual void filter_field_sync (const float *input_samples,
52 float *output_samples,
58 std::vector<double> d_taps;
60 void filterN (const float *input_samples,
61 float *output_samples,
64 void adaptN (const float *input_samples,
65 const float *training_pattern,
66 float *output_samples,
69 float filter1 (const float input[]);
70 float adapt1 (const float input[], float ideal_output);
75 #endif /* _ATSC_EQUALIZER_LMS_H_ */