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I have an expression in the time domain f = -1j*H(t) * exp(-(1j*a+b)*t) which can be Fourier trans… Read more Proving Fourier Transform Operation In Python

After taking the Discrete Fourier Transform of some samples with scipy.fftpack.fft() and plotting t… Read more Can You Compute The Amplitude/power Of Original Signal From Fourier Transform?

I am trying to re-implement one of the matlab toolboxes. they use fft over there. when i perform … Read more Fft In Matlab And Numpy / Scipy Give Different Results

I know there have been several questions about using the Fast Fourier Transform (FFT) method in pyt… Read more Two Dimensional Fft Using Python Results In Slightly Shifted Frequency

I want to perform numerically Fourier transform of Gaussian function using fft2. Under this transfo… Read more Fourier Transform In Python 2d

I'm trying to solve a problem with python+numpy in which I've some functions of type that … Read more Shift Theorem In Discrete Fourier Transform

I have a periodic signal I would like to find the period. Since there is border effect, I first cu… Read more Find Period Of A Signal Out Of The Fft

I am interested in usefull tricks and and banana skins when doing Fourier transformation in python.… Read more Tutorial, Tricks And Banana Skins For Discrete Fourier Transformation (ft) In Python

Randomly building a very easy sound spectrum analyzer. Given this python code: http://rosettacode.o… Read more FFT Wrong Value?