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wfliyulin

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clear
x=-1:0.1:1;
y=zeros(1,21);
y(9:13)=1;
Y=fft(y);
Y(1)=[ ];
n=fix(length(Y)/2);
freq=[1:n]./length(Y);

Y1=fft(y,256);
Y1(1)=[ ];
n1=fix(length(Y1)/2);
freq1=[1:n1]./length(Y1);

subplot(211)
plot(x,y,'*r')
subplot(212)
plot(freq,abs(Y(1:n)),freq1,abs(Y1(1:n1)),'r-.')


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littlepecker

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wfliyulin

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2Â¥: Originally posted by littlepecker at 2015-09-11 16:24:52
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4Â¥: Originally posted by ÂæÍÕÐ¡Ôæ at 2016-03-25 09:26:43
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5Â¥: Originally posted by ˶ʿ³ÂÍþÁØ at 2016-03-26 15:55:21
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Mr__Right

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8Â¥: Originally posted by Mr__Right at 2016-04-06 19:14:59
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