8AL-RAHEEM K F, ROY A, RAMACHANDRAN K P, et al. Application of the Laplace wavelet combined with ANN for rolling bearing fault diagnosis[J]. Journal of Vibration and Acoustics, Transactions of the ASME,2008, 130(5): 051007-1-9.
9HUANG N E, SHEN Z, LONG S R. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis[J]. Froc. R. Soc. Lond. A, 1998, 454: 903-995.
10YAN Ruqiang, GAO R. Hilbert-Huang transform based vibration signal analysis for machine health monitoring[J]. IEEE Transactions on Instrumentation and Measurement,2006, 55(6): 2320-2329.
