About: Finite Fourier transform

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In mathematics the finite Fourier transform may refer to either * another name for discrete-time Fourier transform (DTFT) of a finite-length series. E.g., (pp. 52–53) describes the finite Fourier transform as a "continuous periodic function" and the discrete Fourier transform (DFT) as "a set of samples of the finite Fourier transform". In actual implementation, that is not two separate steps; the DFT replaces the DTFT. So (pp. 77–78) describes the implementation as discrete finite Fourier transform. or * another name for the Fourier series coefficients. or

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  • In mathematics the finite Fourier transform may refer to either * another name for discrete-time Fourier transform (DTFT) of a finite-length series. E.g., (pp. 52–53) describes the finite Fourier transform as a "continuous periodic function" and the discrete Fourier transform (DFT) as "a set of samples of the finite Fourier transform". In actual implementation, that is not two separate steps; the DFT replaces the DTFT. So (pp. 77–78) describes the implementation as discrete finite Fourier transform. or * another name for the Fourier series coefficients. or * another name for one snapshot of a short-time Fourier transform. (en)
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  • In mathematics the finite Fourier transform may refer to either * another name for discrete-time Fourier transform (DTFT) of a finite-length series. E.g., (pp. 52–53) describes the finite Fourier transform as a "continuous periodic function" and the discrete Fourier transform (DFT) as "a set of samples of the finite Fourier transform". In actual implementation, that is not two separate steps; the DFT replaces the DTFT. So (pp. 77–78) describes the implementation as discrete finite Fourier transform. or * another name for the Fourier series coefficients. or (en)
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  • Finite Fourier transform (en)
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