GNU Radio's SATELLITES Package

costas_loop_8apsk_cc_impl.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2022 Daniel Estevez <daniel@destevez.net>
4 *
5 * This file is part of gr-satellites
6 *
7 * SPDX-License-Identifier: GPL-3.0-or-later
8 *
9 */
10
11#ifndef INCLUDED_SATELLITES_COSTAS_LOOP_8APSK_CC_IMPL_H
12#define INCLUDED_SATELLITES_COSTAS_LOOP_8APSK_CC_IMPL_H
13
14#include <gnuradio/math.h>
15#include <satellites/costas_loop_8apsk_cc.h>
16
17 namespace gr {
18 namespace satellites {
19
20 class costas_loop_8apsk_cc_impl : public costas_loop_8apsk_cc
21{
22 private:
23 float d_error;
24
25 float phase_detector(gr_complex sample) const
26 {
27 if (sample.real() * sample.real() + sample.imag() * sample.imag() < 0.25) {
28 return 0;
29 }
30 float phase = gr::fast_atan2f(sample.imag(), sample.real());
31 return fmodf(phase + GR_M_PI, 2.0 * GR_M_PI / 7.0) - GR_M_PI / 7.0;
32 }
33
34 public:
35 costas_loop_8apsk_cc_impl(float loop_bw);
36 ~costas_loop_8apsk_cc_impl();
37
38 float error() const override { return d_error; };
39
40 int work(int noutput_items,
41 gr_vector_const_void_star& input_items,
42 gr_vector_void_star& output_items);
43};
44
45} // namespace satellites
46} // namespace gr
47
48#endif /* INCLUDED_SATELLITES_COSTAS_LOOP_8APSK_CC_IMPL_H */
gr::satellites::costas_loop_8apsk_cc_impl::costas_loop_8apsk_cc_impl
costas_loop_8apsk_cc_impl(float loop_bw)
gr::satellites::costas_loop_8apsk_cc_impl::work
int work(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
gr::satellites::costas_loop_8apsk_cc_impl::~costas_loop_8apsk_cc_impl
~costas_loop_8apsk_cc_impl()
gr::satellites::costas_loop_8apsk_cc_impl::error
float error() const override
Definition costas_loop_8apsk_cc_impl.h:38
gr::satellites::costas_loop_8apsk_cc
8APSK Costas Loop
Definition costas_loop_8apsk_cc.h:28
costas_loop_8apsk_cc.h
gr::satellites
Definition ax100_decode.h:18
gr
Definition ax100_decode.h:17