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/* -*- c++ -*- */
/*
* Copyright 2006,2010-2013,2018 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "pll_carriertracking_cc_impl.h"
#include <gnuradio/io_signature.h>
#include <gnuradio/sincos.h>
#include <cmath>
namespace gr {
namespace analog {
pll_carriertracking_cc::sptr
pll_carriertracking_cc::make(float loop_bw, float max_freq, float min_freq)
{
return gnuradio::make_block_sptr<pll_carriertracking_cc_impl>(
loop_bw, max_freq, min_freq);
}
pll_carriertracking_cc_impl::pll_carriertracking_cc_impl(float loop_bw,
float max_freq,
float min_freq)
: sync_block("pll_carriertracking_cc",
io_signature::make(1, 1, sizeof(gr_complex)),
io_signature::make(1, 1, sizeof(gr_complex))),
blocks::control_loop(loop_bw, max_freq, min_freq),
d_locksig(0),
d_lock_threshold(0),
d_squelch_enable(false)
{
}
pll_carriertracking_cc_impl::~pll_carriertracking_cc_impl() {}
bool pll_carriertracking_cc_impl::squelch_enable(bool set_squelch)
{
return d_squelch_enable = set_squelch;
}
float pll_carriertracking_cc_impl::set_lock_threshold(float threshold)
{
return d_lock_threshold = threshold;
}
int pll_carriertracking_cc_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const gr_complex* iptr = (gr_complex*)input_items[0];
gr_complex* optr = (gr_complex*)output_items[0];
float error;
float t_imag, t_real;
for (int i = 0; i < noutput_items; i++) {
gr::sincosf(d_phase, &t_imag, &t_real);
fast_cc_multiply(optr[i], iptr[i], gr_complex(t_real, -t_imag));
error = phase_detector(iptr[i], d_phase);
advance_loop(error);
phase_wrap();
frequency_limit();
d_locksig = d_locksig * (1.0 - d_alpha) +
d_alpha * (iptr[i].real() * t_real + iptr[i].imag() * t_imag);
if ((d_squelch_enable) && !lock_detector())
optr[i] = 0;
}
return noutput_items;
}
void pll_carriertracking_cc_impl::set_loop_bandwidth(float bw)
{
blocks::control_loop::set_loop_bandwidth(bw);
}
void pll_carriertracking_cc_impl::set_damping_factor(float df)
{
blocks::control_loop::set_damping_factor(df);
}
void pll_carriertracking_cc_impl::set_alpha(float alpha)
{
blocks::control_loop::set_alpha(alpha);
}
void pll_carriertracking_cc_impl::set_beta(float beta)
{
blocks::control_loop::set_beta(beta);
}
void pll_carriertracking_cc_impl::set_frequency(float freq)
{
blocks::control_loop::set_frequency(freq);
}
void pll_carriertracking_cc_impl::set_phase(float phase)
{
blocks::control_loop::set_phase(phase);
}
void pll_carriertracking_cc_impl::set_min_freq(float freq)
{
blocks::control_loop::set_min_freq(freq);
}
void pll_carriertracking_cc_impl::set_max_freq(float freq)
{
blocks::control_loop::set_max_freq(freq);
}
float pll_carriertracking_cc_impl::get_loop_bandwidth() const
{
return blocks::control_loop::get_loop_bandwidth();
}
float pll_carriertracking_cc_impl::get_damping_factor() const
{
return blocks::control_loop::get_damping_factor();
}
float pll_carriertracking_cc_impl::get_alpha() const
{
return blocks::control_loop::get_alpha();
}
float pll_carriertracking_cc_impl::get_beta() const
{
return blocks::control_loop::get_beta();
}
float pll_carriertracking_cc_impl::get_frequency() const
{
return blocks::control_loop::get_frequency();
}
float pll_carriertracking_cc_impl::get_phase() const
{
return blocks::control_loop::get_phase();
}
float pll_carriertracking_cc_impl::get_min_freq() const
{
return blocks::control_loop::get_min_freq();
}
float pll_carriertracking_cc_impl::get_max_freq() const
{
return blocks::control_loop::get_max_freq();
}
} /* namespace analog */
} /* namespace gr */
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