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authorTom Rondeau <trondeau@vt.edu>2013-01-13 20:37:06 -0500
committerTom Rondeau <trondeau@vt.edu>2013-01-13 20:37:06 -0500
commite568a26a433d852ae991b0a3025ee48901f88b1e (patch)
treec6c7c4fbab962ee7c4343d551936ded729039b2a /gr-pager/lib/slicer_fb_impl.h
parentcfa793daa722e910c2d54b691c99efcbb9efc252 (diff)
pager: converting to new API structure.
Diffstat (limited to 'gr-pager/lib/slicer_fb_impl.h')
-rw-r--r--gr-pager/lib/slicer_fb_impl.h54
1 files changed, 54 insertions, 0 deletions
diff --git a/gr-pager/lib/slicer_fb_impl.h b/gr-pager/lib/slicer_fb_impl.h
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+++ b/gr-pager/lib/slicer_fb_impl.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2007,2012 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_PAGER_SLICER_FB_IMPL_H
+#define INCLUDED_PAGER_SLICER_FB_IMPL_H
+
+#include <pager/slicer_fb.h>
+
+namespace gr {
+ namespace pager {
+
+ class slicer_fb_impl : public slicer_fb
+ {
+ private:
+ unsigned char slice(float sample);
+
+ float d_alpha; // DC removal time constant
+ float d_beta; // 1.0-d_alpha
+ float d_avg; // Average value for DC offset subtraction
+
+ public:
+ slicer_fb_impl(float alpha);
+ ~slicer_fb_impl();
+
+ int work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items);
+
+ float dc_offset() const { return d_avg; }
+ };
+
+ } /* namespace pager */
+} /* namespace gr */
+
+#endif /* INCLUDED_PAGER_SLICER_FB_IMPL_H */