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Topic: question on fft example
Replies: 5   Last Post: Nov 17, 2012 11:02 PM

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Registered: 7/14/05
question on fft example
Posted: Nov 15, 2012 3:33 AM
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The mathwork fft example in the following link,
http://bit.ly/SO9TuV
why do we double abs(Y(1:NFFT/2+1) when plotting the amplitude?

plot(f,2*abs(Y(1:NFFT/2+1)))



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