3 * Copyright 2006 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef INCLUDED_GR_OFDM_BPSK_DEMAPPER_H
24 #define INCLUDED_GR_OFDM_BPSK_DEMAPPER_H
30 class gr_ofdm_bpsk_demapper;
31 typedef boost::shared_ptr<gr_ofdm_bpsk_demapper> gr_ofdm_bpsk_demapper_sptr;
33 gr_ofdm_bpsk_demapper_sptr
34 gr_make_ofdm_bpsk_demapper (unsigned int occupied_carriers);
38 * \brief take a vector of complex constellation points in from an FFT
39 * and demodulate to a stream of bits. Simple BPSK version.
42 class gr_ofdm_bpsk_demapper : public gr_block
44 friend gr_ofdm_bpsk_demapper_sptr
45 gr_make_ofdm_bpsk_demapper (unsigned int occupied_carriers);
48 gr_ofdm_bpsk_demapper (unsigned int occupied_carriers);
51 unsigned char slicer(gr_complex x);
53 unsigned int d_occupied_carriers;
54 unsigned int d_byte_offset;
55 unsigned char d_partial_byte;
57 void forecast(int noutput_items, gr_vector_int &ninput_items_required);
60 ~gr_ofdm_bpsk_demapper(void);
61 int general_work(int noutput_items,
62 gr_vector_int &ninput_items,
63 gr_vector_const_void_star &input_items,
64 gr_vector_void_star &output_items);