GNU Radio 3.6.3.1 C++ API
trellis_siso_f.h
Go to the documentation of this file.
1 /* -*- c++ -*- */
2 /*
3  * Copyright 2004 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
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)
10  * any later version.
11  *
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.
16  *
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.
21  */
22 
23 #ifndef INCLUDED_TRELLIS_SISO_F_H
24 #define INCLUDED_TRELLIS_SISO_F_H
25 
26 #include <trellis_api.h>
27 #include "fsm.h"
28 #include "siso_type.h"
29 #include "core_algorithms.h"
30 #include <gr_block.h>
31 
32 class trellis_siso_f;
34 
36  const fsm &FSM, // underlying FSM
37  int K, // block size in trellis steps
38  int S0, // initial state (put -1 if not specified)
39  int SK, // final state (put -1 if not specified)
40  bool POSTI, // true if you want a-posteriori info about the input symbols to be mux-ed in the output
41  bool POSTO, // true if you want a-posteriori info about the output symbols to be mux-ed in the output
42  trellis_siso_type_t d_SISO_TYPE // perform "min-sum" or "sum-product" combining
43 );
44 
45 
46 /*!
47  * \ingroup coding_blk
48  */
50 {
51  fsm d_FSM;
52  int d_K;
53  int d_S0;
54  int d_SK;
55  bool d_POSTI;
56  bool d_POSTO;
57  trellis_siso_type_t d_SISO_TYPE;
58  //std::vector<float> d_alpha;
59  //std::vector<float> d_beta;
60 
62  const fsm &FSM,
63  int K,
64  int S0,
65  int SK,
66  bool POSTI,
67  bool POSTO,
68  trellis_siso_type_t d_SISO_TYPE);
69 
70 
72  const fsm &FSM,
73  int K,
74  int S0,
75  int SK,
76  bool POSTI,
77  bool POSTO,
78  trellis_siso_type_t d_SISO_TYPE);
79 
80 
81 public:
82  fsm FSM () const { return d_FSM; }
83  int K () const { return d_K; }
84  int S0 () const { return d_S0; }
85  int SK () const { return d_SK; }
86  bool POSTI () const { return d_POSTI; }
87  bool POSTO () const { return d_POSTO; }
88  trellis_siso_type_t SISO_TYPE () const { return d_SISO_TYPE; }
89  void forecast (int noutput_items,
90  gr_vector_int &ninput_items_required);
91  int general_work (int noutput_items,
92  gr_vector_int &ninput_items,
93  gr_vector_const_void_star &input_items,
94  gr_vector_void_star &output_items);
95 };
96 
97 #endif