Sliced Wigner Fourth Order Moment Spectra Smoothed by γ-Method and Its Application to Detection of Valve System Faults in an Engine

The research proposes a method for detecting valve system faults in an engine. The methodology is based on the detection of impulsive sound embedded in the high level of background noise by using the sliced Wigner fourth order moment spectra (SWFOMS) which is inherently more robust in the presence o...

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Bibliographic Details
Main Author: Sang-Kwon Lee
Format: Article
Language:English
Published: Hindawi Limited 2001-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2001/128143