1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* -*- c++ -*- */
/*
* Copyright 2004,2010,2011,2018 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_freqdet_cf_impl.h"
#include <gnuradio/io_signature.h>
#include <gnuradio/math.h>
#include <cmath>
namespace gr {
namespace analog {
pll_freqdet_cf::sptr pll_freqdet_cf::make(float loop_bw, float max_freq, float min_freq)
{
return gnuradio::get_initial_sptr(
new pll_freqdet_cf_impl(loop_bw, max_freq, min_freq));
}
pll_freqdet_cf_impl::pll_freqdet_cf_impl(float loop_bw, float max_freq, float min_freq)
: sync_block("pll_freqdet_cf",
io_signature::make(1, 1, sizeof(gr_complex)),
io_signature::make(1, 1, sizeof(float))),
blocks::control_loop(loop_bw, max_freq, min_freq)
{
}
pll_freqdet_cf_impl::~pll_freqdet_cf_impl() {}
float pll_freqdet_cf_impl::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 pll_freqdet_cf_impl::phase_detector(gr_complex sample, float ref_phase)
{
float sample_phase;
sample_phase = gr::fast_atan2f(sample.imag(), sample.real());
return mod_2pi(sample_phase - ref_phase);
}
int pll_freqdet_cf_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];
float* optr = (float*)output_items[0];
float error;
int size = noutput_items;
while (size-- > 0) {
*optr++ = d_freq;
error = phase_detector(*iptr++, d_phase);
advance_loop(error);
phase_wrap();
frequency_limit();
}
return noutput_items;
}
void pll_freqdet_cf_impl::set_loop_bandwidth(float bw)
{
blocks::control_loop::set_loop_bandwidth(bw);
}
void pll_freqdet_cf_impl::set_damping_factor(float df)
{
blocks::control_loop::set_damping_factor(df);
}
void pll_freqdet_cf_impl::set_alpha(float alpha)
{
blocks::control_loop::set_alpha(alpha);
}
void pll_freqdet_cf_impl::set_beta(float beta) { blocks::control_loop::set_beta(beta); }
void pll_freqdet_cf_impl::set_frequency(float freq)
{
blocks::control_loop::set_frequency(freq);
}
void pll_freqdet_cf_impl::set_phase(float phase)
{
blocks::control_loop::set_phase(phase);
}
void pll_freqdet_cf_impl::set_min_freq(float freq)
{
blocks::control_loop::set_min_freq(freq);
}
void pll_freqdet_cf_impl::set_max_freq(float freq)
{
blocks::control_loop::set_max_freq(freq);
}
float pll_freqdet_cf_impl::get_loop_bandwidth() const
{
return blocks::control_loop::get_loop_bandwidth();
}
float pll_freqdet_cf_impl::get_damping_factor() const
{
return blocks::control_loop::get_damping_factor();
}
float pll_freqdet_cf_impl::get_alpha() const { return blocks::control_loop::get_alpha(); }
float pll_freqdet_cf_impl::get_beta() const { return blocks::control_loop::get_beta(); }
float pll_freqdet_cf_impl::get_frequency() const
{
return blocks::control_loop::get_frequency();
}
float pll_freqdet_cf_impl::get_phase() const { return blocks::control_loop::get_phase(); }
float pll_freqdet_cf_impl::get_min_freq() const
{
return blocks::control_loop::get_min_freq();
}
float pll_freqdet_cf_impl::get_max_freq() const
{
return blocks::control_loop::get_max_freq();
}
} /* namespace analog */
} /* namespace gr */
|
