Title :
Application of Harmonic Wavelet Package to Feature Extraction in Impulsive Signal
Author :
Zhang, Wenbin ; Cai, Qun ; Wang, Hongjun ; Shen, Lu ; Li, Junsheng
Author_Institution :
Honghe Univ., Mengzi, China
Abstract :
In order to extract impulsive feature of fault signal, a novel approach was proposed by using harmonic wavelet package. With this method, the signal could be decomposed into any frequency band, and then the interested frequency band could be extracted and reconstructed in time domain, so the impulsive feature could be extracted from rubbing fault signal. Simulation and practical example show the good characteristics of this method. It also has simple algorithm and easy on-site application.
Keywords :
abrasion; fault diagnosis; feature extraction; harmonics; signal reconstruction; wavelet transforms; feature extraction; harmonic wavelet package; impulsive feature; impulsive signal; rubbing fault signal; Equations; Fault diagnosis; Feature extraction; Frequency domain analysis; Packaging; Power harmonic filters; Signal analysis; Signal processing; Wavelet analysis; Wavelet domain;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5301212
