Exponential time-frequency distribution of mechanical vibration signals |
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Authors: | Gangtie Zheng P. D. McFadden |
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Affiliation: | (1) Department of Aerospace Engineering, Harbin Institute of Technology, 150001 Harbin, China;(2) Department of Engineering Science, University of Oxford, Oxford, UK |
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Abstract: | An improved exponential time-frequency distribution is presented. Compared with those exponential time-frequency distributions represented by the Choi-Williams distribution, this distribution is designed to suit the properties of mechanical vibration signals, and is easier to be applied in the mechanical vibration signal processing. It has a strong cross-term suppression ability and is aliasing free. |
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Keywords: | time-frequency distribution mechanical vibration signal signal processing condition monitoring. |
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