The Sliding Windowed Infinite Fourier Transform [Tips & Tricks]

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Abstract

The discrete Fourier transform (DFT) is the standard tool for spectral analysis in digital signal processing, typically computed using the fast Fourier transform (FFT). However, for real-time applications that require recalculating the DFT at each sample or over only a subset of the N center frequencies of the DFT, the FFT is far from optimal.

Original languageEnglish (US)
Article number8026592
Pages (from-to)183-188
Number of pages6
JournalIEEE Signal Processing Magazine
Volume34
Issue number5
DOIs
StatePublished - Sep 2017

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