_3pv.c

一款工程FFT的计算

/***
*	...
*	随机产生三相电压的程序, 与其他程序是独立的.
*	随机电压的取值范围 4.5V ~ 5.5V
****/

#include <stdio.h>
#include <stdlib.h>

void main(void)
{
	FILE *v1, *v2, *v3;
	long i;

	v1 = fopen("fft_v1.txt", "wb");
	v2 = fopen("fft_v2.txt", "wb");
	v3 = fopen("fft_v3.txt", "wb");

	for (i = 0; i < 384000; i++) {
		fprintf(v1, "%f%s", 4.5+(float)random(10001)/10000, ((i+1)%8==0)?"\r\n":" ");
		fprintf(v2, "%f%s", 4.5+(float)random(10001)/10000, ((i+1)%8==0)?"\r\n":" ");
		fprintf(v3, "%f%s", 4.5+(float)random(10001)/10000, ((i+1)%8==0)?"\r\n":" ");
	}
}