Topic
Discrete-time Fourier transform
About: Discrete-time Fourier transform is a research topic. Over the lifetime, 5072 publications have been published within this topic receiving 144643 citations. The topic is also known as: DTFT.
Papers published on a yearly basis
Papers
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TL;DR: In this article, an uncertainty principle for the representation of a vector in two bases has been shown to be applicable to the discrete version of the short time Fourier transform (SFTF).
34 citations
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TL;DR: In this article, the Fourier transform of the Vlasov equation analytically in velocity space was studied and the resulting equation was solved numerically by using outgoing wave boundary conditions.
34 citations
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TL;DR: A joint power spectrum based processor called joint transform correlator, which is shift invariant and can produce at the output well-defined peaks identifying the presence and the location of the targets.
33 citations
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TL;DR: In this paper, a non-recursive transform equation for the Fourier transform of a discrete Walsh function with a rectangular pulse was developed, which is a function of the bits of the Gray code number for the order of the Walsh function.
Abstract: Convolution of a discrete Walsh function with a rectangular pulse simplifies the derivation of an expression for the Fourier transform of a Walsh function. The nonrecursive transform equation that is developed is a function of the bits of the Gray code number for the order of the Walsh function.
33 citations
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TL;DR: In this paper, the first N Fourier-Bessel transform is computed in the order of 2 LN log 2 N operations and this number is comparable to the operation count corresponding to a two-dimensional discrete Fourier transform.
33 citations