summaryrefslogtreecommitdiff
path: root/gr-trellis/src/lib/core_algorithms.h
blob: cab7086ba727a0a2cc1acdb691715843101685a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
/* -*- c++ -*- */
/*
 * Copyright 2004 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_CORE_ALGORITHMS_H
#define INCLUDED_CORE_ALGORITHMS_H

#include <cmath>
#include <vector>
//#include <gr_complex.h>
#include "digital_metric_type.h"
#include "fsm.h"
#include "interleaver.h"


float min(float a, float b);
float min_star(float a, float b);

template <class T> 
void viterbi_algorithm(int I, int S, int O,
             const std::vector<int> &NS,
             const std::vector<int> &OS,
             const std::vector< std::vector<int> > &PS,
             const std::vector< std::vector<int> > &PI,
             int K,
             int S0,int SK,
             const float *in, T *out
);

template <class Ti, class To>
void viterbi_algorithm_combined(int I, int S, int O,
             const std::vector<int> &NS,
             const std::vector<int> &OS,
             const std::vector< std::vector<int> > &PS,
             const std::vector< std::vector<int> > &PI,
             int K,
             int S0,int SK,
             int D,
             const std::vector<Ti> &TABLE,
             trellis_metric_type_t TYPE,
             const Ti *in, To *out
);



void siso_algorithm(int I, int S, int O,
             const std::vector<int> &NS,
             const std::vector<int> &OS,
             const std::vector< std::vector<int> > &PS,
             const std::vector< std::vector<int> > &PI,
             int K,
             int S0,int SK,
             bool POSTI, bool POSTO,
             float (*p2mymin)(float,float),
             const float *priori, const float *prioro, float *post
);


template <class T>
void siso_algorithm_combined(int I, int S, int O,
             const std::vector<int> &NS,
             const std::vector<int> &OS,
             const std::vector< std::vector<int> > &PS,
             const std::vector< std::vector<int> > &PI,
             int K,
             int S0,int SK,
             bool POSTI, bool POSTO,
             float (*p2mymin)(float,float),
             int D,
             const std::vector<T> &TABLE,
             trellis_metric_type_t TYPE,
             const float *priori, const T *observations, float *post
);


template<class T>
void sccc_decoder(
      const fsm &FSMo, int STo0, int SToK,
      const fsm &FSMi, int STi0, int STiK,
      const interleaver &INTERLEAVER, int blocklength, int iterations,
      float (*p2mymin)(float,float),
      const float *iprioro, T *data
);
 

template<class Ti, class To>
void sccc_decoder_combined(
      const fsm &FSMo, int STo0, int SToK,
      const fsm &FSMi, int STi0, int STiK,
      const interleaver &INTERLEAVER, int blocklength, int iterations,
      float (*p2mymin)(float,float),
      int D, const std::vector<Ti> &TABLE,
      trellis_metric_type_t METRIC_TYPE,
      float scaling,
      const Ti *observations, To *data
);

template<class T>
void pccc_decoder(
      const fsm &FSM1, int ST10, int ST1K,
      const fsm &FSM2, int ST20, int ST2K,
      const interleaver &INTERLEAVER, int blocklength, int iterations,
      float (*p2mymin)(float,float),
      const float *cprioro, T *data
);

template<class Ti, class To>
void pccc_decoder_combined(
      const fsm &FSM1, int ST10, int ST1K,
      const fsm &FSM2, int ST20, int ST2K,
      const interleaver &INTERLEAVER, int blocklength, int iterations,
      float (*p2mymin)(float,float),
      int D, const std::vector<Ti> &TABLE,
      trellis_metric_type_t METRIC_TYPE,
      float scaling,
      const Ti *observations, To *data
);




#endif