GNU Radio Manual and C++ API Reference  3.7.9.2
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probe_avg_mag_sqrd_c.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005,2006,2012 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
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10  * any later version.
11  *
12  * GNU Radio is distributed in the hope that it will be useful,
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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
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21  */
22 #ifndef INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_C_H
23 #define INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_C_H
24 
25 #include <gnuradio/analog/api.h>
26 #include <gnuradio/sync_block.h>
27 
28 namespace gr {
29  namespace analog {
30 
31  /*!
32  * \brief compute avg magnitude squared.
33  * \ingroup measurement_tools_blk
34  *
35  * \details
36  * Input stream 0: complex
37  *
38  * Compute a running average of the magnitude squared of the the
39  * input. The level and indication as to whether the level exceeds
40  * threshold can be retrieved with the level and unmuted
41  * accessors.
42  */
44  {
45  public:
46  // gr::analog::probe_avg_mag_sqrd_c::sptr
47  typedef boost::shared_ptr<probe_avg_mag_sqrd_c> sptr;
48 
49  /*!
50  * \brief Make a complex sink that computes avg magnitude squared.
51  *
52  * \param threshold_db Threshold for muting.
53  * \param alpha Gain parameter for the running average filter.
54  */
55  static sptr make(double threshold_db, double alpha = 0.0001);
56 
57  virtual bool unmuted() const = 0;
58  virtual double level() const = 0;
59  virtual double threshold() const = 0;
60 
61  virtual void set_alpha(double alpha) = 0;
62  virtual void set_threshold(double decibels) = 0;
63  virtual void reset() = 0;
64  };
65 
66  } /* namespace analog */
67 } /* namespace gr */
68 
69 #endif /* INCLUDED_ANALOG_PROBE_AVG_MAG_SQRD_C_H */
compute avg magnitude squared.
Definition: probe_avg_mag_sqrd_c.h:43
boost::shared_ptr< probe_avg_mag_sqrd_c > sptr
Definition: probe_avg_mag_sqrd_c.h:47
Include this header to use the message passing features.
Definition: logger.h:131
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
#define ANALOG_API
Definition: gr-analog/include/gnuradio/analog/api.h:30