GNU Radio 3.5.3.2 C++ API
gr_random.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2002 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_GR_RANDOM_H
24 #define INCLUDED_GR_RANDOM_H
25 
26 #include <gr_core_api.h>
27 #include <gr_complex.h>
28 
29 /*!
30  * \brief pseudo random number generator
31  * \ingroup math_blk
32  */
34 protected:
35  static const int NTAB = 32;
36  long d_seed;
37  long d_iy;
38  long d_iv[NTAB];
39  int d_iset;
40  float d_gset;
41 
42 
43 public:
44  gr_random (long seed=3021);
45 
46  void reseed (long seed);
47 
48  /*!
49  * \brief uniform random deviate in the range [0.0, 1.0)
50  */
51  float ran1 ();
52 
53  /*!
54  * \brief normally distributed deviate with zero mean and variance 1
55  */
56  float gasdev ();
57 
58  float laplacian ();
59  float impulse (float factor);
60  float rayleigh ();
61  gr_complex rayleigh_complex ();
62 };
63 
64 #endif /* INCLUDED_GR_RANDOM_H */
65