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00023 #ifndef INCLUDED_GR_CLOCK_RECOVERY_MM_FF_H
00024 #define INCLUDED_GR_CLOCK_RECOVERY_MM_FF_H
00025
00026 #include <gr_block.h>
00027 #include <gr_math.h>
00028 #include <stdio.h>
00029
00030 class gri_mmse_fir_interpolator;
00031
00032 class gr_clock_recovery_mm_ff;
00033 typedef boost::shared_ptr<gr_clock_recovery_mm_ff> gr_clock_recovery_mm_ff_sptr;
00034
00035
00036 gr_clock_recovery_mm_ff_sptr
00037 gr_make_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu,
00038 float omega_relative_limit=0.001);
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
00049
00050 class gr_clock_recovery_mm_ff : public gr_block
00051 {
00052 public:
00053 ~gr_clock_recovery_mm_ff ();
00054 void forecast(int noutput_items, gr_vector_int &ninput_items_required);
00055 int general_work (int noutput_items,
00056 gr_vector_int &ninput_items,
00057 gr_vector_const_void_star &input_items,
00058 gr_vector_void_star &output_items);
00059 float mu() const { return d_mu;}
00060 float omega() const { return d_omega;}
00061 float gain_mu() const { return d_gain_mu;}
00062 float gain_omega() const { return d_gain_omega;}
00063
00064 void set_gain_mu (float gain_mu) { d_gain_mu = gain_mu; }
00065 void set_gain_omega (float gain_omega) { d_gain_omega = gain_omega; }
00066 void set_mu (float mu) { d_mu = mu; }
00067 void set_omega (float omega){
00068 d_omega = omega;
00069 d_min_omega = omega*(1.0 - d_omega_relative_limit);
00070 d_max_omega = omega*(1.0 + d_omega_relative_limit);
00071 d_omega_mid = 0.5*(d_min_omega+d_max_omega);
00072 }
00073
00074 protected:
00075 gr_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu,
00076 float omega_relative_limit);
00077
00078 private:
00079 float d_mu;
00080 float d_omega;
00081 float d_min_omega;
00082 float d_omega_mid;
00083 float d_max_omega;
00084 float d_gain_omega;
00085 float d_gain_mu;
00086 float d_last_sample;
00087 gri_mmse_fir_interpolator *d_interp;
00088 FILE *d_logfile;
00089 float d_omega_relative_limit;
00090
00091 friend gr_clock_recovery_mm_ff_sptr
00092 gr_make_clock_recovery_mm_ff (float omega, float gain_omega, float mu, float gain_mu,
00093 float omega_relative_limit);
00094 };
00095
00096 #endif