The Time-Frequency Resolution of Short Time Fourier Transform Based on Multi-Window Functions

Abstract:

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The short-time Fourier transform has the disadvantage that is does not localize time and frequency phenomena very well. Instead the time-frequency information is scattered which depends on the length of the window. It is not possible to have arbitrarily good time resolution simultaneously with good frequency resolution. In this paper, a new method that uses the short-time Fourier transform based on multi-window functions to enhance time-frequency resolution of signals has been proposed. Simulation and experimental results present the high performance of the proposed method.

Info:

Periodical:

Edited by:

Zeng Zhu

Pages:

122-127

DOI:

10.4028/www.scientific.net/AMR.214.122

Citation:

L. H. Wang et al., "The Time-Frequency Resolution of Short Time Fourier Transform Based on Multi-Window Functions", Advanced Materials Research, Vol. 214, pp. 122-127, 2011

Online since:

February 2011

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$35.00

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