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/* -*- c++ -*- */
/*
* Copyright 2004,2006,2011,2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_IMPL_H
#define INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_IMPL_H
#include <gnuradio/analog/pll_carriertracking_cc.h>
#include <gnuradio/math.h>
namespace gr {
namespace analog {
class pll_carriertracking_cc_impl : public pll_carriertracking_cc
{
private:
float d_locksig, d_lock_threshold;
bool d_squelch_enable;
float mod_2pi(float in)
{
if (in > GR_M_PI)
return in - (2.0 * GR_M_PI);
else if (in < -GR_M_PI)
return in + (2.0 * GR_M_PI);
else
return in;
}
float phase_detector(gr_complex sample, float ref_phase)
{
float sample_phase;
// sample_phase = atan2(sample.imag(),sample.real());
sample_phase = gr::fast_atan2f(sample.imag(), sample.real());
return mod_2pi(sample_phase - ref_phase);
}
public:
pll_carriertracking_cc_impl(float loop_bw, float max_freq, float min_freq);
~pll_carriertracking_cc_impl();
bool lock_detector(void) { return (fabsf(d_locksig) > d_lock_threshold); }
bool squelch_enable(bool);
float set_lock_threshold(float);
void set_loop_bandwidth(float bw);
void set_damping_factor(float df);
void set_alpha(float alpha);
void set_beta(float beta);
void set_frequency(float freq);
void set_phase(float phase);
void set_min_freq(float freq);
void set_max_freq(float freq);
float get_loop_bandwidth() const;
float get_damping_factor() const;
float get_alpha() const;
float get_beta() const;
float get_frequency() const;
float get_phase() const;
float get_min_freq() const;
float get_max_freq() const;
int work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items);
};
} /* namespace analog */
} /* namespace gr */
#endif /* INCLUDED_ANALOG_PLL_CARRIERTRACKING_CC_IMPL_H */
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