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The Discrete Fourier Transform, Part 4: Spectral Leakage

By: Douglas Lyon

Abstract

Windowing modulates the input signal so that the spectral leakage is evened out (spreading on-bucket signals more and off- bucket signals less). Thus, windowing reduces the amplitude of the samples at the beginning and end of the window, altering leakage.

Cite as:

Douglas Lyon, “The Discrete Fourier Transform, Part 4: Spectral Leakage”, Journal of Object Technology, Volume 8, no. 7 (November 2009), pp. 23-34, doi:10.5381/jot.2009.8.7.c2.

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