GNU Radio 3.6.4.1 C++ API
gr_probe_avg_mag_sqrd_cf.h
Go to the documentation of this file.
1
/* -*- c++ -*- */
2
/*
3
* Copyright 2005,2006 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
#ifndef INCLUDED_GR_PROBE_AVG_MAG_SQRD_CF_H
23
#define INCLUDED_GR_PROBE_AVG_MAG_SQRD_CF_H
24
25
#include <
gr_core_api.h
>
26
#include <
gr_sync_block.h
>
27
#include <
gr_single_pole_iir.h
>
28
29
class
gr_probe_avg_mag_sqrd_cf
;
30
typedef
boost::shared_ptr<gr_probe_avg_mag_sqrd_cf>
gr_probe_avg_mag_sqrd_cf_sptr
;
31
32
GR_CORE_API
gr_probe_avg_mag_sqrd_cf_sptr
33
gr_make_probe_avg_mag_sqrd_cf
(
double
threshold_db,
double
alpha = 0.0001);
34
35
/*!
36
* \brief compute avg magnitude squared.
37
* \ingroup sink_blk
38
*
39
* input: gr_complex
40
* output: gr_float
41
*
42
* Compute a running average of the magnitude squared of the the input.
43
* The level and indication as to whether the level exceeds threshold
44
* can be retrieved with the level and unmuted accessors.
45
*
46
*/
47
class
GR_CORE_API
gr_probe_avg_mag_sqrd_cf
:
public
gr_sync_block
48
{
49
double
d_threshold;
50
gr_single_pole_iir<double,double,double>
d_iir;
51
bool
d_unmuted;
52
double
d_level;
53
54
friend
GR_CORE_API
gr_probe_avg_mag_sqrd_cf_sptr
55
gr_make_probe_avg_mag_sqrd_cf
(
double
threshold_db,
double
alpha);
56
57
gr_probe_avg_mag_sqrd_cf
(
double
threshold_db,
double
alpha);
58
59
public
:
60
~
gr_probe_avg_mag_sqrd_cf
();
61
62
int
work
(
int
noutput_items,
63
gr_vector_const_void_star
&input_items,
64
gr_vector_void_star
&output_items);
65
66
// ACCESSORS
67
bool
unmuted
()
const
{
return
d_unmuted; }
68
double
level
()
const
{
return
d_level; }
69
70
double
threshold()
const
;
71
72
// SETTERS
73
void
set_alpha (
double
alpha);
74
void
set_threshold (
double
decibels);
75
};
76
77
#endif
/* INCLUDED_GR_PROBE_AVG_MAG_SQRD_CF_H */
gnuradio-core
src
lib
general
gr_probe_avg_mag_sqrd_cf.h
Generated on Sun Apr 28 2013 20:26:35 for GNU Radio 3.6.4.1 C++ API by
1.8.3.1