GNU Radio Manual and C++ API Reference  3.7.9.2
The Free & Open Software Radio Ecosystem
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Modules Pages
noise_source_s.h
Go to the documentation of this file.
1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004,2012 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 // WARNING: this file is machine generated. Edits will be overwritten
24 
25 #ifndef INCLUDED_ANALOG_NOISE_SOURCE_S_H
26 #define INCLUDED_ANALOG_NOISE_SOURCE_S_H
27 
28 #include <gnuradio/analog/api.h>
30 #include <gnuradio/sync_block.h>
31 
32 namespace gr {
33  namespace analog {
34 
35  /*!
36  * \brief Random number source
37  * \ingroup waveform_generators_blk
38  *
39  * \details
40  * Generate random values from different distributions.
41  * Currently, only Gaussian and uniform are enabled.
42  */
43  class ANALOG_API noise_source_s : virtual public sync_block
44  {
45  public:
46  // gr::analog::noise_source_s::sptr
47  typedef boost::shared_ptr<noise_source_s> sptr;
48 
49  /*! Build a noise source
50  * \param type the random distribution to use (see
51  * gnuradio/analog/noise_type.h)
52  * \param ampl the standard deviation of a 1-d noise process. If
53  * this is the complex source, this parameter is split
54  * among the real and imaginary parts:
55  * <pre>(ampl/sqrt(2))x + j(ampl/sqrt(2))y</pre>
56  * \param seed seed for random generators. Note that for uniform
57  * and Gaussian distributions, this should be a negative
58  * number.
59  */
60  static sptr make(noise_type_t type, float ampl, long seed=0);
61 
62  /*!
63  * Set the noise type. Nominally from the
64  * gr::analog::noise_type_t selections, but only GR_GAUSSIAN and
65  * GR_UNIFORM are currently available.
66  */
67  virtual void set_type(noise_type_t type) = 0;
68 
69  /*!
70  * Set the standard deviation (amplitude) of the 1-d noise
71  * process.
72  */
73  virtual void set_amplitude(float ampl) = 0;
74 
75  virtual noise_type_t type() const = 0;
76  virtual float amplitude() const = 0;
77  };
78 
79  } /* namespace analog */
80 } /* namespace gr */
81 
82 #endif /* INCLUDED_ANALOG_NOISE_SOURCE_S_H */
noise_type_t
Definition: noise_type.h:29
Include this header to use the message passing features.
Definition: logger.h:131
Random number source.
Definition: noise_source_s.h:43
synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...
Definition: sync_block.h:37
boost::shared_ptr< noise_source_s > sptr
Definition: noise_source_s.h:47
#define ANALOG_API
Definition: gr-analog/include/gnuradio/analog/api.h:30