DISCRETE FOURIER TRANSFORM


Meaning of DISCRETE FOURIER TRANSFORM in English

< mathematics > (DFT) A Fourier transform , specialized to the case where the abscissas are integers.

The DFT is central to many kinds of signal processing , including the analysis and compression of video and sound information.

A common implementation of the DFT is the Fast Fourier Transform (FFT).

See also discrete cosine transform .

(1997-03-10)

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