diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2012-08-12 22:36:39 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2012-08-12 22:36:39 -0400 |
| commit | 719ebae8fb75635f1291e21b74af69cbdefe4837 (patch) | |
| tree | e166f92baf4a1ff8940cadfea24e035aac41bd16 /gr-digital/include/digital/glfsr_source_b.h | |
| parent | 78d149cd3d230ca9310401496e5770401aeb478c (diff) | |
digital: converted correlator blocks to 3.7; everything to make qa_correlate_access_code work.
Diffstat (limited to 'gr-digital/include/digital/glfsr_source_b.h')
| -rw-r--r-- | gr-digital/include/digital/glfsr_source_b.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gr-digital/include/digital/glfsr_source_b.h b/gr-digital/include/digital/glfsr_source_b.h new file mode 100644 index 0000000000..8edabc836f --- /dev/null +++ b/gr-digital/include/digital/glfsr_source_b.h @@ -0,0 +1,60 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2012 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_GLFSR_SOURCE_B_H +#define INCLUDED_GR_GLFSR_SOURCE_B_H + +#include <digital/api.h> +#include <gr_sync_block.h> + +namespace gr { + namespace digital { + + /*! + * \brief Galois LFSR pseudo-random source + * \ingroup source_blk + * + * \param degree Degree of shift register must be in [1, 32]. If mask + * is 0, the degree determines a default mask (see + * digital_impl_glfsr.cc for the mapping). + * \param repeat Set to repeat sequence. + * \param mask Allows a user-defined bit mask for indexes of the shift + * register to feed back. + * \param seed Initial setting for values in shift register. + */ + class DIGITAL_API glfsr_source_b : virtual public gr_sync_block + { + public: + // gr::digital::glfsr_source_b::sptr + typedef boost::shared_ptr<glfsr_source_b> sptr; + + static sptr make(int degree, bool repeat=true, + int mask=0, int seed=1); + + virtual unsigned int period() const = 0; + virtual int mask() const = 0; + }; + + } /* namespace digital */ +} /* namespace gr */ + +#endif /* INCLUDED_GR_GLFSR_SOURCE_B_H */ |