When we apply fourier transform over a signal will i get same power or energy signal as i get in time domain?

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Biomedical on 12 Sep 2013

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Kindly, elaborate the ans if yes then how and no then how?

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Matt J on 12 Sep 2013

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If you normalize appropriately, then yes. E.g.,

    >> x=rand(1,5);
    >> norm(x)
    ans =
        1.6536
    >> norm(fft(x)/sqrt(numel(x)))
    ans =
        1.6536

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