diff options
Diffstat (limited to 'gr-pager/src/pager_slicer_fb.h')
-rw-r--r-- | gr-pager/src/pager_slicer_fb.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gr-pager/src/pager_slicer_fb.h b/gr-pager/src/pager_slicer_fb.h new file mode 100644 index 000000000..052cb8263 --- /dev/null +++ b/gr-pager/src/pager_slicer_fb.h @@ -0,0 +1,58 @@ +/* + * Copyright 2006 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 2, 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_PAGER_SLICER_FB_H +#define INCLUDED_PAGER_SLICER_FB_H + +#include <gr_sync_block.h> + +class pager_slicer_fb; +typedef boost::shared_ptr<pager_slicer_fb> pager_slicer_fb_sptr; + +pager_slicer_fb_sptr pgr_make_slicer_fb(float alpha, float beta); + +/*! + * \brief slicer description + * \ingroup block + */ +class pager_slicer_fb : public gr_sync_block +{ +private: + friend pager_slicer_fb_sptr pager_make_slicer_fb(float alpha, float beta); + pager_slicer_fb(float alpha, float beta); + + unsigned char slice(float sample); + + float d_alpha; // Attack constant + float d_beta; // Decay constant + float d_max; // Maximum value for symbol comparison + float d_hi; // High side decision boundary + float d_avg; // Average value for DC offset subtraction + float d_lo; // Low side decision boundary + float d_min; // Minimum value for symbol comparison + +public: + int work (int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); +}; + +#endif /* INCLUDED_PAGER_SLICER_FB_H */ |