countber.cpp

来自「这个是数据打孔重传程序的源代码」· C++ 代码 · 共 43 行

/**********************************************/
/* Counter of error bits
/* double CountBerF(struct BasicParaS * ctrl, int * input, int * output)
/*      Written by: Ouyang Ziyue,
/*            Date: Jun 19th, 2007,
/*        Function: It compares the orginial info bits and the decoded info bits to calc the error ratio
/* Input parameter:
/*        The length of info bits is included in the ctrl,
/*        The input is the original input bits,
/*        The output is the output of decoder
/* Output parameter:
/*        The return value is the BER
/* Note:
/*        ctrl should be built before this function is called,
/**********************************************/

#include "parameter_sets.h"

double CountBerF(struct BasicParaS * ctrl, int * input, int * output)
{
	//////////////////////////////////////////////////////////////////////////
	//Declaration
	double ber;
	int i;
	double counter=0;

	//////////////////////////////////////////////////////////////////////////
	//Counting BER
	for (i=0; i<ctrl->codeK; i++)
	{
		if ((*(input+i)) != (*(output+i)))
		{
			counter += 1;
#ifdef DEBUG
			printf("%d\n",i);
#endif
		}
	}
	
	ber = counter/ctrl->codeK;

	return ber;	
}