Generalized Short-Time Fourier Transforms Based on Nonuniform Filter Bank Structure

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概要

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• The discrete-time short-time Fourier transform (STFT) is known as a useful tool for analyzing and synthesizing signals. This paper introduces an extention of the well-known STFT to a general form which is more suitable for high resolutional signal analysis. A channel frequency division scheme is developed for realizing arbitrary bandwidth and center frequency so as to improve resolution performance. It is based on a nonuniform filter bank structure with integer decimation and interpolation factors. A design example of the generalized STFT using symmetric windows is given.

• 1995-03-25

著者

• Wada Shigeo

  Faculty Of Science And Engineering Tokyo Denki University

• Wada S

  Tokyo Denki Univ. Tokyo Jpn

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• Generalized Short-Time Fourier Transforms Based on Nonuniform Filter Bank Structure

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