[BOOK|MOBI] Mathematics of the Discrete Fourier Transform (DFT)

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This interpolation is not unique: aliasing implies that one could add N to any of the complex-sinusoid frequencies e. This approach is known as the row-column algorithm.

Note that it contains several elements windows, zero padding, spectral interpolation that we will not cover until later. Well, those samples are on the unit circle.

An Intuitive Discrete Fourier Transform Tutorial - In general, if you ever see an equation that looks like this: where x and y are signals of some sort, you can say 'Aha!