GNU Radio 3.6.5 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2006,2012 Free Software Foundation, Inc. 00004 * 00005 * This file is part of GNU Radio 00006 * 00007 * GNU Radio is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 3, or (at your option) 00010 * any later version. 00011 * 00012 * GNU Radio is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with GNU Radio; see the file COPYING. If not, write to 00019 * the Free Software Foundation, Inc., 51 Franklin Street, 00020 * Boston, MA 02110-1301, USA. 00021 */ 00022 00023 #ifndef INCLUDED_GR_DIFF_PHASOR_CC_H 00024 #define INCLUDED_GR_DIFF_PHASOR_CC_H 00025 00026 #include <digital_api.h> 00027 #include <gr_sync_block.h> 00028 00029 class digital_diff_phasor_cc; 00030 typedef boost::shared_ptr<digital_diff_phasor_cc> digital_diff_phasor_cc_sptr; 00031 00032 DIGITAL_API digital_diff_phasor_cc_sptr digital_make_diff_phasor_cc(); 00033 00034 /*! 00035 * \brief Differential decoding based on phase change. 00036 * \ingroup symbol_coding_blk 00037 * 00038 * \details 00039 * Uses the phase difference between two symbols to determine the 00040 * output symbol: 00041 * 00042 * out[i] = in[i] * conj(in[i-1]); 00043 */ 00044 class DIGITAL_API digital_diff_phasor_cc : public gr_sync_block 00045 { 00046 friend DIGITAL_API digital_diff_phasor_cc_sptr 00047 digital_make_diff_phasor_cc(); 00048 00049 digital_diff_phasor_cc(); //constructor 00050 00051 public: 00052 ~digital_diff_phasor_cc(); //destructor 00053 00054 int work(int noutput_items, 00055 gr_vector_const_void_star &input_items, 00056 gr_vector_void_star &output_items); 00057 }; 00058 00059 #endif