3 * Copyright 2009 Free Software Foundation, Inc.
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24 #ifndef INCLUDED_GR_FLL_BAND_EDGE_CC_H
25 #define INCLUDED_GR_FLL_BAND_EDGE_CC_H
27 #include <gr_sync_block.h>
29 class gr_fll_band_edge_cc;
30 typedef boost::shared_ptr<gr_fll_band_edge_cc> gr_fll_band_edge_cc_sptr;
31 gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float alpha, float beta,
32 const std::vector<gr_complex> &taps);
35 class gri_fft_complex;
38 * \class gr_fll_band_edge_cc
39 * \brief Frequency Lock Loop using band-edge filters
44 class gr_fll_band_edge_cc : public gr_sync_block
49 * \param taps (vector/list of gr_complex) The taps of the band-edge filter
51 friend gr_fll_band_edge_cc_sptr gr_make_fll_band_edge_cc (float alpha, float beta,
52 const std::vector<gr_complex> &taps);
59 gr_fir_ccc* d_filter_upper;
60 gr_fir_ccc* d_filter_lower;
61 std::vector<gr_complex> d_taps_upper;
62 std::vector<gr_complex> d_taps_lower;
69 * \param taps (vector/list of gr_complex) The taps of the band-edge filter
71 gr_fll_band_edge_cc(float alpha, float beta,
72 const std::vector<gr_complex> &taps);
75 ~gr_fll_band_edge_cc ();
78 * Resets the filter taps with the new prototype filter
79 * \param taps (vector/list of gr_complex) The band-edge filter
81 void set_taps (const std::vector<gr_complex> &taps);
84 * Set the alpha gainvalue
85 * \param alpha (float) new gain value
87 void set_alpha(float alpha) { d_alpha = alpha; }
90 * Set the beta gain value
91 * \param beta (float) new gain value
93 void set_beta(float beta) { d_beta = beta; }
96 * Print the taps to screen.
100 int work (int noutput_items,
101 gr_vector_const_void_star &input_items,
102 gr_vector_void_star &output_items);