English Explanatory Dictionary

Fourier transform

English dictionary entry

Meanings

noun
  1. A particular integral transform that when applied to a function of time (such as a signal), converts the function to one that plots the original function's frequency composition; the resultant function of such a conversion.

Word forms

Fourier transform Fourier transforms FT

Etymology

Named after French mathematician and physicist Jean Baptiste Joseph Fourier, who initiated the study of what is now harmonic analysis.

Derived words

inverse Fourier transform continuous Fourier transform discrete Fourier transform fast Fourier transform Fourier-transform infrared spectroscopy
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