A blind deconvolution algorithm was applied to extract or enhance the impulse impact signals in vibration signals of the localized defect bearings. The algorithm is based on maximizing the kurtosis value of the deconvolved signals. In the deconvolved signals collected from rolling bearings with inner race and outer race faults, the faulty impulse signals were adequately enhanced, and appeared regularly in the time domain. By taking two times the value of the standard deviation of the deconvolved signals as the threshold values, the "clean" faulty impulse line sequences were obtained using the ...
