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/* -*- c++ -*- */
/*
* Copyright 2009,2010,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H
#define INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H
#include <gnuradio/digital/pfb_clock_sync_ccf.h>
using namespace gr::filter;
namespace gr {
namespace digital {
class pfb_clock_sync_ccf_impl : public pfb_clock_sync_ccf
{
private:
bool d_updated;
double d_sps;
float d_loop_bw;
float d_damping;
float d_alpha;
float d_beta;
const int d_nfilters;
int d_taps_per_filter;
std::vector<kernel::fir_filter_ccf> d_filters;
std::vector<kernel::fir_filter_ccf> d_diff_filters;
std::vector<std::vector<float>> d_taps;
std::vector<std::vector<float>> d_dtaps;
std::vector<float> d_updated_taps;
float d_k;
float d_rate;
float d_rate_i;
float d_rate_f;
float d_max_dev;
int d_filtnum;
int d_osps;
float d_error;
int d_out_idx;
uint64_t d_old_in, d_new_in, d_last_out;
void create_diff_taps(const std::vector<float>& newtaps,
std::vector<float>& difftaps);
void set_taps(const std::vector<float>& taps,
std::vector<std::vector<float>>& ourtaps,
std::vector<kernel::fir_filter_ccf>& ourfilter);
public:
pfb_clock_sync_ccf_impl(double sps,
float loop_bw,
const std::vector<float>& taps,
unsigned int filter_size = 32,
float init_phase = 0,
float max_rate_deviation = 1.5,
int osps = 1);
void setup_rpc();
void update_gains();
void forecast(int noutput_items, gr_vector_int& ninput_items_required) override;
void update_taps(const std::vector<float>& taps);
std::vector<std::vector<float>> taps() const;
std::vector<std::vector<float>> diff_taps() const;
std::vector<float> channel_taps(int channel) const;
std::vector<float> diff_channel_taps(int channel) const;
std::string taps_as_string() const;
std::string diff_taps_as_string() const;
void set_loop_bandwidth(float bw);
void set_damping_factor(float df);
void set_alpha(float alpha);
void set_beta(float beta);
void set_max_rate_deviation(float m) { d_max_dev = m; }
float loop_bandwidth() const;
float damping_factor() const;
float alpha() const;
float beta() const;
float clock_rate() const;
float error() const;
float rate() const;
float phase() const;
/*******************************************************************
*******************************************************************/
bool check_topology(int ninputs, int noutputs) override;
int general_work(int noutput_items,
gr_vector_int& ninput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items) override;
};
} /* namespace digital */
} /* namespace gr */
#endif /* INCLUDED_DIGITAL_PFB_CLOCK_SYNC_CCF_IMPL_H */
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