KEM 2009 DOI: 10.4028/www.scientific.net/kem.413-414.135 View full text
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Hong Kun Li, Zhi Xin Zhang

Abstract: Instantaneous impact signal analysis investigation and feature extraction have been broadly investigated by many researchers. How to determine an effective time-frequency distribution analysis method is urgent needed. In this paper, Hilbert spectrum frequency resolution is investigated to show signal typical features according to performance estimation model. Different frequency units for a Hilbert spectrum expression will be investigated on the effect of feature analysis in detail. An estimation model will be…

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