GNU Radio 3.5.3.2 C++ API
gr_pll_carriertracking_cc.h
Go to the documentation of this file.
1
/* -*- c++ -*- */
2
/*
3
* Copyright 2004,2006,2011 Free Software Foundation, Inc.
4
*
5
* This file is part of GNU Radio
6
*
7
* GNU Radio is free software; you can redistribute it and/or modify
8
* it under the terms of the GNU General Public License as published by
9
* the Free Software Foundation; either version 3, or (at your option)
10
* any later version.
11
*
12
* GNU Radio is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
* GNU General Public License for more details.
16
*
17
* You should have received a copy of the GNU General Public License
18
* along with GNU Radio; see the file COPYING. If not, write to
19
* the Free Software Foundation, Inc., 51 Franklin Street,
20
* Boston, MA 02110-1301, USA.
21
*/
22
23
#ifndef INCLUDED_GR_PLL_CARRIERTRACKING_CC_H
24
#define INCLUDED_GR_PLL_CARRIERTRACKING_CC_H
25
26
#include <
gr_core_api.h
>
27
#include <
gr_sync_block.h
>
28
#include <
gri_control_loop.h
>
29
30
class
gr_pll_carriertracking_cc
;
31
typedef
boost::shared_ptr<gr_pll_carriertracking_cc>
gr_pll_carriertracking_cc_sptr
;
32
33
GR_CORE_API
gr_pll_carriertracking_cc_sptr
gr_make_pll_carriertracking_cc
(
float
loop_bw,
34
float
max_freq,
35
float
min_freq);
36
/*!
37
* \brief Implements a PLL which locks to the input frequency and outputs the
38
* input signal mixed with that carrier.
39
* \ingroup sync_blk
40
*
41
* input: stream of complex; output: stream of complex
42
*
43
* This PLL locks onto a [possibly noisy] reference carrier on
44
* the input and outputs that signal, downconverted to DC
45
*
46
* All settings max_freq and min_freq are in terms of radians per sample,
47
* NOT HERTZ. The loop bandwidth determins the lock range and should be set
48
* around pi/200 -- 2pi/100.
49
* \sa gr_pll_freqdet_cf, gr_pll_carriertracking_cc
50
*/
51
52
class
GR_CORE_API
gr_pll_carriertracking_cc
:
public
gr_sync_block
,
public
gri_control_loop
53
{
54
friend
GR_CORE_API
gr_pll_carriertracking_cc_sptr
gr_make_pll_carriertracking_cc
(
float
loop_bw,
55
float
max_freq,
56
float
min_freq);
57
58
float
d_locksig,d_lock_threshold;
59
bool
d_squelch_enable;
60
gr_pll_carriertracking_cc
(
float
loop_bw,
float
max_freq,
float
min_freq);
61
62
int
work
(
int
noutput_items,
63
gr_vector_const_void_star
&input_items,
64
gr_vector_void_star
&output_items);
65
private
:
66
float
mod_2pi (
float
in);
67
float
phase_detector(
gr_complex
sample,
float
ref_phase);
68
public
:
69
bool
lock_detector(
void
);
70
bool
squelch_enable(
bool
);
71
float
set_lock_threshold(
float
);
72
};
73
74
#endif
gnuradio-core
src
lib
general
gr_pll_carriertracking_cc.h
Generated on Sat Mar 15 2014 12:03:54 for GNU Radio 3.5.3.2 C++ API by
1.8.1.2