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Concept information

Terme préférentiel

Fourier transform  

Définition

  • In physics and mathematics, the Fourier transform (FT) is a transform that converts a function into a form that describes the frequencies present in the original function. The output of the transform is a complex-valued function of frequency. The term Fourier transform refers to both this complex-valued function and the mathematical operation. When a distinction needs to be made the Fourier transform is sometimes called the frequency domain representation of the original function. The Fourier transform is analogous to decomposing the sound of a musical chord into terms of the intensity of its constituent pitches.
    (Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Fourier_transform)

Concept générique

Traductions

URI

http://data.loterre.fr/ark:/67375/PSR-B9K2X244-Z

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