encode.h

用于LDPC编码译码的仿真实现。包括随机生成校验矩阵、由校验矩阵产生生成矩阵、编码、加随机噪声、译码等内容。原作者是老外

/* ENCODE.C - Encode message blocks. */

/* Copyright (c) 2000, 2001 by Radford M. Neal 
 *
 * Permission is granted for anyone to copy, use, or modify this program 
 * for purposes of research or education, provided this copyright notice 
 * is retained, and note is made of any changes that have been made. 
 *
 * This program is distributed without any warranty, express or implied.
 * As this program was written for research purposes only, it has not been
 * tested to the degree that would be advisable in any important application.
 * All use of this program is entirely at the user's own risk.
 */
#ifndef ENCODE_H
#define ENCODE_H
#include "dataStruct.h"

void encode(char *pchk_file,char *gen_file,int *data_source,int *data_encoded);
void encode_DVB(int *source_data, int source_length, int *encoded_data,int encoded_length);

void huffman_tree(double *p, int size, HFTREE T[]);
void huffman(double *p,int size,int *huffman_code,int codelength[],HFTREE T[]);
int source_code(int *symbol,int symbollength,int *code,int codelength[],int size,int *data);


#endif