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Zero padding consists of extending a signal (or spectrum) with zeros to extend its time (or frequency band) limits.

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Why Zero Padding in the Center of the DFT Interpolates / Upsamples the Signal (Sinc Interpol...

I'm experimenting with the Inverse Discrete Fourier Transform. Starting from the two-cycles continuous $x(t)$ signal below: I have the discrete signal $x(n) = \{ 1, 0, -1, 0, 1, 0, -1, 0 \}$ leadin …
Sylvain Leroux's user avatar