GNU Radio Manual and C++ API Reference  3.7.9.2
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fmdet_cf.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008,2012 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,
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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
18  * along with GNU Radio; see the file COPYING. If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
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21  */
22 
23 #ifndef INCLUDED_ANALOG_FMDET_CF_H
24 #define INCLUDED_ANALOG_FMDET_CF_H
25 
26 #include <gnuradio/analog/api.h>
27 #include <gnuradio/sync_block.h>
28 
29 namespace gr {
30  namespace analog {
31 
32  /*!
33  * \brief Implements an IQ slope detector
34  * \ingroup modulators_blk
35  *
36  * \details
37  * input: stream of complex; output: stream of floats
38  *
39  * This implements a limiting slope detector. The limiter is in
40  * the normalization by the magnitude of the sample
41  */
42  class ANALOG_API fmdet_cf : virtual public sync_block
43  {
44  public:
45  // gr::analog::fmdet_cf::sptr
46  typedef boost::shared_ptr<fmdet_cf> sptr;
47 
48  /*!
49  * \brief Make FM detector block.
50  *
51  * \param samplerate sample rate of signal (is not used; to be removed)
52  * \param freq_low lowest frequency of signal (Hz)
53  * \param freq_high highest frequency of signal (Hz)
54  * \param scl scale factor
55  */
56  static sptr make(float samplerate, float freq_low,
57  float freq_high, float scl);
58 
59  virtual void set_scale(float scl) = 0;
60  virtual void set_freq_range(float freq_low, float freq_high) = 0;
61 
62  virtual float freq() const = 0;
63  virtual float freq_high() const = 0;
64  virtual float freq_low() const = 0;
65  virtual float scale() const = 0;
66  virtual float bias() const = 0;
67  };
68 
69  } /* namespace analog */
70 } /* namespace gr */
71 
72 #endif /* INCLUDED_ANALOG_FMDET_CF_H */
boost::shared_ptr< fmdet_cf > sptr
Definition: fmdet_cf.h:46
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
Implements an IQ slope detector.
Definition: fmdet_cf.h:42
#define ANALOG_API
Definition: gr-analog/include/gnuradio/analog/api.h:30