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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 class gr_costas_loop_cc;
00032 typedef boost::shared_ptr<gr_costas_loop_cc> gr_costas_loop_cc_sptr;
00033
00034 gr_costas_loop_cc_sptr
00035 gr_make_costas_loop_cc (float alpha, float beta,
00036 float max_freq, float min_freq,
00037 int order
00038 ) throw (std::invalid_argument);
00039
00040
00047 class gr_costas_loop_cc : public gr_sync_block
00048 {
00049 friend gr_costas_loop_cc_sptr gr_make_costas_loop_cc (float alpha, float beta,
00050 float max_freq, float min_freq,
00051 int order
00052 ) throw (std::invalid_argument);
00053
00054 float d_alpha, d_beta, d_max_freq, d_min_freq, d_phase, d_freq;
00055 int d_order;
00056
00057 gr_costas_loop_cc (float alpha, float beta,
00058 float max_freq, float min_freq,
00059 int order
00060 ) throw (std::invalid_argument);
00061
00062 float phase_detector_4(gr_complex sample) const;
00063 float phase_detector_2(gr_complex sample) const;
00064 float (gr_costas_loop_cc::*d_phase_detector)(gr_complex sample) const;
00065
00066 public:
00067
00068 int work (int noutput_items,
00069 gr_vector_const_void_star &input_items,
00070 gr_vector_void_star &output_items);
00071 };
00072
00073 #endif