gr_costas_loop_cc.h
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00024 #ifndef INCLUDED_GR_COSTAS_LOOP_CC_H
00025 #define INCLUDED_GR_COSTAS_LOOP_CC_H
00026
00027 #include <gr_sync_block.h>
00028 #include <stdexcept>
00029 #include <fstream>
00030
00031
00056 class gr_costas_loop_cc;
00057 typedef boost::shared_ptr<gr_costas_loop_cc> gr_costas_loop_cc_sptr;
00058
00059
00060 gr_costas_loop_cc_sptr
00061 gr_make_costas_loop_cc (float alpha, float beta,
00062 float max_freq, float min_freq,
00063 int order
00064 ) throw (std::invalid_argument);
00065
00066
00077 class gr_costas_loop_cc : public gr_sync_block
00078 {
00079 friend gr_costas_loop_cc_sptr gr_make_costas_loop_cc (float alpha, float beta,
00080 float max_freq, float min_freq,
00081 int order
00082 ) throw (std::invalid_argument);
00083
00084 float d_alpha, d_beta, d_max_freq, d_min_freq, d_phase, d_freq;
00085 int d_order;
00086
00087 gr_costas_loop_cc (float alpha, float beta,
00088 float max_freq, float min_freq,
00089 int order
00090 ) throw (std::invalid_argument);
00091
00096 float phase_detector_4(gr_complex sample) const;
00097
00102 float phase_detector_2(gr_complex sample) const;
00103
00104
00105 float (gr_costas_loop_cc::*d_phase_detector)(gr_complex sample) const;
00106
00107 public:
00108
00112 void set_alpha(float alpha);
00113
00117 float alpha() const { return d_alpha; }
00118
00122 void set_beta(float beta);
00123
00127 float beta() const { return d_beta; }
00128
00129 int work (int noutput_items,
00130 gr_vector_const_void_star &input_items,
00131 gr_vector_void_star &output_items);
00132 };
00133
00134 #endif