NDLI: A novel technique to reduce cross terms in the squared magnitude of the wavelet transform and the short-time Fourier transform

Content Provider	IEEE Xplore Digital Library
Author	Pachori, R.B. Sircar, P.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur (Pachori, R.B.; Sircar, P.)
Abstract	The energy distribution of a non-stationary signal is often represented by the squared magnitude of the wavelet transform (WT) or the short-time Fourier transform (STFT). The energy distribution contains cross terms, which can cause problems while analyzing the multicomponent signals. In this paper, a unified approach is developed for the time-frequency analysis of a multi-component signal without introducing cross terms. The Fourier-Bessel (FB) series expansion of the multicomponent signal is used for separating and reconstructing the individual components of the signal, and then, the time-frequency energy distributions are computed for the individual components. The simulation results show that the proposed approach based on the FB series expansion is a powerful tool for analyzing multicomponent signals
Starting Page	217
Ending Page	222
File Size	1268628
Page Count	6
File Format	PDF
ISBN	078039030X
e-ISBN	0780390318
DOI	10.1109/WISP.2005.1531661
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-01
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms Analytical models Fourier transforms Power engineering computing Computational modeling Time frequency analysis Wavelet analysis Signal analysis Distributed computing Signal resolution
Content Type	Text
Resource Type	Article

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