An Efficient Oil Pipelines Leakage Detection Method based on Independent Component Analysis

2013 ◽  
Vol 5 (3) ◽  
pp. 625-631
Author(s):  
Ma Junchi ◽  
YANG Guihua ◽  
FU Baohong ◽  
HAO Shujuan
Keyword(s):  
Independent Component Analysis ◽  
Detection Method ◽  
Component Analysis ◽  
Independent Component ◽  
Leakage Detection ◽  
Oil Pipelines

A Detection Technology for Weak Vibration Signal Based on Independent Component Analysis

2012 ◽  
Vol 226-228 ◽  
pp. 312-315
Author(s):  
Hai Dong Guo ◽  
Shun Ming Li ◽  
Yuan Yuan Zhang ◽  
Xing Xing Wang ◽  
Sai Ma
Keyword(s):  
Theoretical Analysis ◽  
Independent Component Analysis ◽  
Blind Source Separation ◽  
Detection Method ◽  
Vibration Signal ◽  
Component Analysis ◽  
Independent Component ◽  
Independent Source ◽  
Detection Technology ◽  
Source Signals

For weak vibration signal with strong noise, a new kind of weak vibration signal detection method was proposed in this paper. Based on the redundancy reducing capability and the uncertain amplitude of independent component analysis, virtual noise was introduced to extend the dimension of original observed signal after we analyzed the prior features of noises in observed signal. Then extended signals were processed to get the independent source signals by applying to blind source separation (BSS). Thus, the noise embedded in observed signal was removed and characteristics of weak vibration signal were obtained successfully. Through the theoretical analysis and the simulation, the introduced method of this paper was checked to be available and then it was applied to faults analysis of rotor misalignment successfully. Finally, we made a conclusion that this method had great application value for the extraction of weak vibration signal.

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