The elimination of cross-terms based on the fusion of time-frequency features and its application in machine fault diagnosis

@article{Zhao2011TheEO,
  title={The elimination of cross-terms based on the fusion of time-frequency features and its application in machine fault diagnosis},
  author={Kai Zhao and Haijian Gong and Shibin Wang and Weiguo Huang and Zhongkui Zhu},
  journal={2011 IEEE International Instrumentation and Measurement Technology Conference},
  year={2011},
  pages={1-4}
}
Time-frequency representation, as a commonly method for non-stationary signals processing, includes linear time-frequency representation and bilinear time-frequency representation. Though low in time-frequency concentration, there are no cross-terms in linear time-frequency representation; in contrast, bilinear time-frequency representation, high in resolution, suffer seriously from the cross-terms, which shall lead to the ambiguous representation of a signal in the time-frequency domain. A… 

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References

SHOWING 1-7 OF 7 REFERENCES
Time-frequency domain analysis of vibration signals for machinery diagnostics (II) The weighted Wigner-Ville distribution
TLDR
It is shown that the damage to the gears can be detected by visual inspection of the changes which occur in the pattern of the weighed Wigner-Ville distribution more easily than they could with the original unweighted Wigning Ville distribution.
Analysis of gear vibration signatures by the weighted Wigner-Ville distribution[C
  • International Conference on Vibrations in Rotating Machinery, Institution of Mechanical Engineers,
  • 1992
A comparative study on time–frequency feature of cracked rotor by Wigner–Ville distribution and wavelet transform[J
  • Journal of Sound and Vibration,
  • 2004
Akujuobi , Phil Hamory . An approach to vibration analysis using wavelets in an application of aircraft health monitoring [ J ]
  • Hydraulic noise diagnostics using wavelet analysis [ C ] , Proceedings of the International Conference on Noise Control Engineering
  • 1990
Hydraulic noise diagnostics using wavelet analysis[C
  • Proceedings of the International Conference on Noise Control Engineering,
  • 1990