extract.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

/* EXTRACT.C - Extract message bits from coded 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 EXTRACT_H
#define EXTRACT_H


void extract(char *gen_file,int *decoded_data,int *decoded_source);
void joint_source(mod2sparse *H,char *gen_file, int *decoded_data, int *decoded_source,double *,double *,double *);
void markov_decode(mod2sparse *H,char *gen_file, int *decoded_data, double p,int *decoded_source,double *extr_source,double *);

#endif