Higher-Order Spectra and Independent Component Analysis used for identification and SNR enhancement of Acoustic Emission Signals

2006 ◽  
Author(s):  
J.G. DelaRosa ◽  
I. Lloret ◽  
A. Moreno ◽  
R. Piotrkowski ◽  
J. Ruzzante ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Independent Component Analysis ◽  
Component Analysis ◽  
Higher Order ◽  
Independent Component ◽  
Higher Order Spectra

Feature Extraction of the Acoustic Emission Signals of Low Carbon Steel Pitting Corrosion Based on Independent Component Analysis and Wavelet Transform

2013 ◽  
Vol 373-375 ◽  
pp. 677-680
Author(s):  
Wei Li ◽  
Yu Li Gong ◽  
Yang Yu
Keyword(s):  
Acoustic Emission ◽  
Carbon Steel ◽  
Independent Component Analysis ◽  
Pitting Corrosion ◽  
Wavelet Transformation ◽  
Low Carbon Steel ◽  
Component Analysis ◽  
Independent Component ◽  
Low Carbon ◽  
Ae Signals

Based on the characteristics of the acoustic emission (AE) signals from low carbon steel pitting corrosion, a new extraction method was proposed with wavelet transformation and independent component analysis. The experiment result shows that the new method can overcome the influence induced by the uncertainty of the independent source of low carbon steel pitting corrosion and good extraction result can be achieved.

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