谁能帮我把这组数据离散傅立叶变换一下{0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0} 给出变换结果,并画出幅度谱、相位谱、功率谱 最好给出过程,越

谁能帮我把这组数据离散傅立叶变换一下{0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0} 给出变换结果,并画出幅度谱、相位谱、功率谱 最好给出过程,越
谁能帮我把这组数据离散傅立叶变换一下
{0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0} 给出变换结果,并画出幅度谱、相位谱、功率谱 最好给出过程,越详细越好,

谁能帮我把这组数据离散傅立叶变换一下{0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0} 给出变换结果,并画出幅度谱、相位谱、功率谱 最好给出过程,越
matlab程序：x=[0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0,71,100,71,0,-71,-100,-71,0]; n=512;%做N点FFT [h,w]=freqz(x,1,n); %h为dft后的频谱的幅值,w为h所对应的频率 p=abs(h).^2 %求功率谱 figure(1) plot(w/pi,abs(h)); %幅度谱绘图,角频率都进行了归一化 figure(2) plot(w/pi,angle(h)); % 相位谱绘图 figure(3) plot(w/pi,p); %功率谱绘图 程序是对的,你应该能画出图来了,不行我再上传