VDict - Definition of discrete Fourier transform

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discrete Fourier transform

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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 FourierTransform (FFT).

See also discrete cosine transform.

(1997-03-10)

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discrete Fourier transform Fourier transform discrete cosine transform cepstrum Fast Fourier Transform wavelet DFT STFT FFT DCT more...

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