Fractional envelope analysis for rolling element bearing weak fault feature extraction

@article{Wang2017FractionalEA,
  title={Fractional envelope analysis for rolling element bearing weak fault feature extraction},
  author={Jian-hong Wang and Liyan Qiao and Yongqiang Ye and Yangquan Chen},
  journal={IEEE/CAA Journal of Automatica Sinica},
  year={2017},
  volume={4},
  pages={353-360}
}
The bearing weak fault feature extraction is crucial to mechanical fault diagnosis and machine condition monitoring. Envelope analysis based on Hilbert transform has been widely used in bearing fault feature extraction. A generalization of the Hilbert transform, the fractional Hilbert transform is defined in the frequency domain, it is based upon the modification of spatial filter with a fractional parameter, and it can be used to construct a new kind of fractional analytic signal. By… CONTINUE READING

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