codec_function.h

DPCM编码的联合信源信道译码

#ifndef __LDPC_CODEC_FUNCTION_H__
#define __LDPC_CODEC_FUNCTION_H__

#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include "init_system.h"

void ADConvert(
	double  	*datain,				//floated data in and fixed out	
	int			length,					//number of input data
	int	    	round_en,				//"1" for round ,otherwise set "0" 
	int			sign_en,				//"1" for signed,"0" for unsigned
	int  	 	total_width,			//output bitwidth ,including sign bit
	int			integ_width				//output bitwidth for integer bits	
	);


double randn(double sigma);

void  SourceGen(int i);

void LdpcEncoder();

void LdpcEncoder2();

void Modulation(int blocknum);
//void Modulation();

void PassChannel(int blocknum);

void Init_LdpcIteration();

void LdpcIteration(int block_num);

void BerCalc(long blocknum);

void Ldpc_Ber_Cal(int blocknum);

void UVLC_Ber_Cal(int blocknum);

void PrintResult(long blocknum);

#endif