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Preferred term

fractional Fourier transform  

Definition

  • In mathematics, in the area of harmonic analysis, the fractional Fourier transform (FRFT) is a family of linear transformations generalizing the Fourier transform. It can be thought of as the Fourier transform to the n-th power, where n need not be an integer — thus, it can transform a function to any intermediate domain between time and frequency. Its applications range from filter design and signal analysis to phase retrieval and pattern recognition. (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fractional_Fourier_transform)

Entry terms

  • fractional Fourier transformation

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URI

http://data.loterre.fr/ark:/67375/MDL-C0WQ1Q28-5

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