rmain.c

FFT的实验程序

main()
{
	int i,j;
	int a[20] = {0,3277,6554,9830,13107,16384,19661,22938,26214,29491,32768,
		29491,26214,22938,19661,16384,13107,9830,6554,3277};
	int b[5] = {32768,32768,32768,32768,32768};
	int f[24] = {0};
	
	for(i=0;i<5;i++)
		for(j=0;j<20;j++)
			f[i+j] = b[i]*a[j]+f[i+j];
}