GNU Radio Manual and C++ API Reference 3.8.5.0
The Free & Open Software Radio Ecosystem
 
Loading...
Searching...
No Matches
simple_squelch_cc.h
Go to the documentation of this file.
1/* -*- c++ -*- */
2/*
3 * Copyright 2005,2012 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_ANALOG_SIMPLE_SQUELCH_CC_H
24#define INCLUDED_ANALOG_SIMPLE_SQUELCH_CC_H
25
26#include <gnuradio/analog/api.h>
27#include <gnuradio/sync_block.h>
28
29namespace gr {
30namespace analog {
31
32/*!
33 * \brief simple squelch block based on average signal power and threshold in dB.
34 * \ingroup level_controllers_blk
35 */
37{
38public:
39 // gr::analog::simple_squelch_cc::sptr
40 typedef boost::shared_ptr<simple_squelch_cc> sptr;
41
42 /*!
43 * \brief Make a simple squelch block.
44 *
45 * \param threshold_db Threshold for muting.
46 * \param alpha Gain parameter for the running average filter.
47 */
48 static sptr make(double threshold_db, double alpha);
49
50 virtual bool unmuted() const = 0;
51
52 virtual void set_alpha(double alpha) = 0;
53 virtual void set_threshold(double decibels) = 0;
54
55 virtual double threshold() const = 0;
56 virtual std::vector<float> squelch_range() const = 0;
57};
58
59} /* namespace analog */
60} /* namespace gr */
61
62#endif /* INCLUDED_ANALOG_SIMPLE_SQUELCH_CC_H */
simple squelch block based on average signal power and threshold in dB.
Definition simple_squelch_cc.h:37
virtual void set_threshold(double decibels)=0
static sptr make(double threshold_db, double alpha)
Make a simple squelch block.
boost::shared_ptr< simple_squelch_cc > sptr
Definition simple_squelch_cc.h:40
virtual void set_alpha(double alpha)=0
virtual bool unmuted() const =0
virtual double threshold() const =0
virtual std::vector< float > squelch_range() const =0
synchronous 1:1 input to output with history
Definition sync_block.h:38
#define ANALOG_API
Definition gr-analog/include/gnuradio/analog/api.h:30
GNU Radio logging wrapper for log4cpp library (C++ port of log4j)
Definition basic_block.h:46