Spectrum difference - different number of points
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Hi everyone,
I have two signals with two diffrent sampling frequencies. Hence, my frequency vector is diffrent for each fft. I would like to have the diffrence between the two Spectrums i have. However i can not simply substract one result to the other one, since calulcation of fft is not preformed at exactly the same frequencies.
Is there a way to interpolate fft results on a choosen number of points, to be able to do this operation ?
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