#include?
#include?
#include?“myfft.h“
#define?Ns?128
#define?Fs?50
/*?run?this?program?using?the?console?pauser?or?add?your?own?getch?system（“pause“）?or?input?loop?*/
int?main（int?argc?char?*argv[]）?{
	int?i;
	float?xr[Ns]xi[Ns]y1r[Ns]y1i[Ns]y2r[Ns]y2i[Ns];//輸入信號和輸出信號的實部虛部
	float?y1[Ns]y2[Ns];//傅里葉變換結果的幅度?
	for（i=0;i		xr[i]=mysin（2*3.1415926*i/Fs）;
		xi[i]=0;
	}
	dft（xry1ry1iNs1）;
	fft（xrxiy2ry2iNs1）;
	for（i=0;i		y1[i]=mysqrt（y1r[i]*y1r[i]+y1i[i]*y1i[i]）;
		y2[i]=mysqrt（y2r[i]*y2r[i]+y2i[i]*y2i[i]）;
	}
	printf（“傅里葉變換結果\n“）;?
	for（i=0;i		printf（“X[%-2d]?=?（%-?6.3f+j%-?6.3f）\t（%-?6.3f+j%-?6.3f）\n“iy1r[i]y1i[i]y2r[i]y2i[i]）;
	}
	printf（“幅度\n“）;
	for（i=0;i		float?f=1.0*i*Fs/Ns;
		printf（“F?=?%-10.3fA?=?X[%-2d]?=?%-10.3f%-10.3f\n“fiy1[i]y2[i]）;
	}
	return?0;
}

?屬性????????????大小?????日期????時間???名稱
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?????文件????????920??2019-02-24?11:59??main.c

?????文件???????3053??2019-02-24?11:43??myfft.c

?????文件???????2595??2019-02-23?21:36??data.h

?????文件????????409??2019-02-24?11:43??myfft.h

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?????????????????6977????????????????????4