diff options
Diffstat (limited to 'gnuradio-core/src/lib/general/gr_random.h')
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_random.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/general/gr_random.h b/gnuradio-core/src/lib/general/gr_random.h new file mode 100644 index 000000000..96a8f4418 --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_random.h @@ -0,0 +1,65 @@ +/* -*- c++ -*- */ +/* + * Copyright 2002 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_RANDOM_H +#define INCLUDED_GR_RANDOM_H + +#include <gr_core_api.h> +#include <gr_complex.h> + +/*! + * \brief pseudo random number generator + * \ingroup math_blk + */ +class GR_CORE_API gr_random { +protected: + static const int NTAB = 32; + long d_seed; + long d_iy; + long d_iv[NTAB]; + int d_iset; + float d_gset; + + +public: + gr_random (long seed=3021); + + void reseed (long seed); + + /*! + * \brief uniform random deviate in the range [0.0, 1.0) + */ + float ran1 (); + + /*! + * \brief normally distributed deviate with zero mean and variance 1 + */ + float gasdev (); + + float laplacian (); + float impulse (float factor); + float rayleigh (); + gr_complex rayleigh_complex (); +}; + +#endif /* INCLUDED_GR_RANDOM_H */ + |