GNU Radio 3.6.4.1 C++ API
adaptive_fir_ccf_impl.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2011,2012 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
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
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10  * any later version.
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22 
23 #ifndef INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H
24 #define INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H
25 
27 #include <filter/fir_filter.h>
28 #include <gr_types.h>
29 
30 namespace gr {
31  namespace filter {
32 
34  {
35  private:
36  std::vector<float> d_new_taps;
37  bool d_updated;
38 
39  protected:
40  // Override to calculate error signal per output
41  float error(const gr_complex &out);
42 
43  // Override to calculate new weight from old, corresponding input
44  void update_tap(float &tap, const gr_complex &in);
45 
46  public:
47  void set_taps(const std::vector<float> &taps);
48  std::vector<float> taps();
49 
50  adaptive_fir_ccf_impl(const char *name, int decimation,
51  const std::vector<float> &taps);
52 
53  int work(int noutput_items,
54  gr_vector_const_void_star &input_items,
55  gr_vector_void_star &output_items);
56  };
57 
58  } /* namespace filter */
59 } /* namespace gr */
60 
61 #endif /* INCLUDED_FILTER_ADAPTIVE_FIR_CCF_IMPL_H */