GNU Radio 3.3.0 C++ API
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00001 /* -*- c++ -*- */ 00002 /* 00003 * Copyright 2004 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_TRELLIS_SISO_COMBINED_F_H 00024 #define INCLUDED_TRELLIS_SISO_COMBINED_F_H 00025 00026 #include "fsm.h" 00027 #include "trellis_siso_type.h" 00028 #include "trellis_calc_metric.h" 00029 #include <gr_block.h> 00030 00031 class trellis_siso_combined_f; 00032 typedef boost::shared_ptr<trellis_siso_combined_f> trellis_siso_combined_f_sptr; 00033 00034 trellis_siso_combined_f_sptr trellis_make_siso_combined_f ( 00035 const fsm &FSM, // underlying FSM 00036 int K, // block size in trellis steps 00037 int S0, // initial state (put -1 if not specified) 00038 int SK, // final state (put -1 if not specified) 00039 bool POSTI, // true if you want a-posteriori info about the input symbols to be mux-ed in the output 00040 bool POSTO, // true if you want a-posteriori info about the output symbols to be mux-ed in the output 00041 trellis_siso_type_t d_SISO_TYPE, // perform "min-sum" or "sum-product" combining 00042 int D, 00043 const std::vector<float> &TABLE, 00044 trellis_metric_type_t TYPE 00045 ); 00046 00047 /*! 00048 * \ingroup coding_blk 00049 */ 00050 class trellis_siso_combined_f : public gr_block 00051 { 00052 fsm d_FSM; 00053 int d_K; 00054 int d_S0; 00055 int d_SK; 00056 bool d_POSTI; 00057 bool d_POSTO; 00058 trellis_siso_type_t d_SISO_TYPE; 00059 int d_D; 00060 std::vector<float> d_TABLE; 00061 trellis_metric_type_t d_TYPE; 00062 //std::vector<float> d_alpha; 00063 //std::vector<float> d_beta; 00064 00065 friend trellis_siso_combined_f_sptr trellis_make_siso_combined_f ( 00066 const fsm &FSM, 00067 int K, 00068 int S0, 00069 int SK, 00070 bool POSTI, 00071 bool POSTO, 00072 trellis_siso_type_t d_SISO_TYPE, 00073 int D, 00074 const std::vector<float> &TABLE, 00075 trellis_metric_type_t TYPE); 00076 00077 00078 trellis_siso_combined_f ( 00079 const fsm &FSM, 00080 int K, 00081 int S0, 00082 int SK, 00083 bool POSTI, 00084 bool POSTO, 00085 trellis_siso_type_t d_SISO_TYPE, 00086 int D, 00087 const std::vector<float> &TABLE, 00088 trellis_metric_type_t TYPE); 00089 00090 00091 public: 00092 fsm FSM () const { return d_FSM; } 00093 int K () const { return d_K; } 00094 int S0 () const { return d_S0; } 00095 int SK () const { return d_SK; } 00096 bool POSTI () const { return d_POSTI; } 00097 bool POSTO () const { return d_POSTO; } 00098 trellis_siso_type_t SISO_TYPE () const { return d_SISO_TYPE; } 00099 int D () const { return d_D; } 00100 std::vector<float> TABLE () const { return d_TABLE; } 00101 trellis_metric_type_t TYPE () const { return d_TYPE; } 00102 void forecast (int noutput_items, 00103 gr_vector_int &ninput_items_required); 00104 int general_work (int noutput_items, 00105 gr_vector_int &ninput_items, 00106 gr_vector_const_void_star &input_items, 00107 gr_vector_void_star &output_items); 00108 }; 00109 00110 #endif