Merge commit 'v3.3.0' into upstream

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_ofdm_bpsk_demapper.h

diff --git a/gnuradio-core/src/lib/general/gr_ofdm_bpsk_demapper.h b/gnuradio-core/src/lib/general/gr_ofdm_bpsk_demapper.h
new file mode 100644 (file)
index 0000000..12ae6a8
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_ofdm_bpsk_demapper.h
@@ -0,0 +1,68 @@
+/* -*- c++ -*- */
+/*
+ * 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 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_OFDM_BPSK_DEMAPPER_H
+#define INCLUDED_GR_OFDM_BPSK_DEMAPPER_H
+
+
+#include <gr_block.h>
+#include <vector>
+
+class gr_ofdm_bpsk_demapper;
+typedef boost::shared_ptr<gr_ofdm_bpsk_demapper> gr_ofdm_bpsk_demapper_sptr;
+
+gr_ofdm_bpsk_demapper_sptr 
+gr_make_ofdm_bpsk_demapper (unsigned int occupied_carriers);
+
+
+/*!
+ * \brief take a vector of complex constellation points in from an FFT
+ * and demodulate to a stream of bits. Simple BPSK version.
+ * \ingroup ofdm_blk
+ */
+class gr_ofdm_bpsk_demapper : public gr_block
+{
+  friend gr_ofdm_bpsk_demapper_sptr
+    gr_make_ofdm_bpsk_demapper (unsigned int occupied_carriers);
+  
+ protected:
+  gr_ofdm_bpsk_demapper (unsigned int occupied_carriers);
+  
+ private:
+  unsigned char slicer(gr_complex x);
+
+  unsigned int d_occupied_carriers;
+  unsigned int d_byte_offset;
+  unsigned char d_partial_byte;
+  
+  void forecast(int noutput_items, gr_vector_int &ninput_items_required);
+
+ public:
+  ~gr_ofdm_bpsk_demapper(void);
+  int general_work(int noutput_items,
+                  gr_vector_int &ninput_items,
+                  gr_vector_const_void_star &input_items,
+                  gr_vector_void_star &output_items);
+};
+
+
+#endif