Adaptive spectral kurtosis filtering based on Morlet wavelet and its application for signal transients detection
A gearbox fault feature extraction method is proposed. Wavelet correlation filtering is applied for signal preprocessing. The spectral kurtosis is presented for defining the optimal filter adaptively. The proposed method shows satisfied adaptability in extracting the signal transient.
spectral kurtosis morlet wavelet signal transients timefrequency analysis wavelet correlation filtering.