GNU Radio 3.6.5 C++ API

adaptive_fir_ccf_impl.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2011,2012 Free Software Foundation, Inc.
00004  *
00005  * This file is part of GNU Radio
00006  *
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  *
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H
00024 #define INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H
00025 
00026 #include <filter/adaptive_fir_ccf.h>
00027 #include <filter/fir_filter.h>
00028 #include <gr_types.h>
00029 
00030 namespace gr {
00031   namespace filter {
00032 
00033     class FILTER_API adaptive_fir_ccf_impl : public adaptive_fir_ccf, public kernel::fir_filter_ccf
00034     {
00035     private:
00036       std::vector<float> d_new_taps;
00037       bool d_updated;
00038       
00039     protected:
00040       // Override to calculate error signal per output
00041       float error(const gr_complex &out);
00042 
00043       // Override to calculate new weight from old, corresponding input
00044       void update_tap(float &tap, const gr_complex &in);
00045 
00046     public:
00047       void set_taps(const std::vector<float> &taps);
00048       std::vector<float> taps();
00049 
00050       adaptive_fir_ccf_impl(const char *name, int decimation,
00051                             const std::vector<float> &taps);
00052 
00053       int work(int noutput_items,
00054                gr_vector_const_void_star &input_items,
00055                gr_vector_void_star &output_items);
00056     };
00057 
00058   } /* namespace filter */
00059 } /* namespace gr */
00060 
00061 #endif /* INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H */