A hybrid diagnostic method based on wigner-ville distribution and wavelet packet transform

@article{Tian2010AHD,
  title={A hybrid diagnostic method based on wigner-ville distribution and wavelet packet transform},
  author={Wei Quan Tian and Ru-Qiang Yan and Robert X. Gao},
  journal={2010 International Conference on Wavelet Analysis and Pattern Recognition},
  year={2010},
  pages={386-391}
}
Effective machine health monitoring requires a time-frequency representation with high resolution. This paper presents a hybrid signal processing technique, based on Wavelet Packet Transform (WPT) and Wigner-Ville Distribution (WVD). It allows high resolution without introducing the cross-term interference as the original WVD method does. The suitability of applying this method is shown by both simulation and experiments.