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Vol. 174, Issue 7, July 2014, pp. 246-252

 

Bullet

 

The Optimal Wavelet Basis Use for Gas Pipeline Leak Monitoring and Positioning
 

1 Yueqin Li, 2* Lei Han

1 College of Information, Beijing Union University, Beijing 100101, China
2 State Key Laboratory Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2 Tel.: 86-13681099613, fax: 86-1068914557

2 E-mail: llhanlei@bit.edu.cn

 

Received: 19 March 2014 /Accepted: 30 June 2014 /Published: 31 July 2014

Digital Sensors and Sensor Sysstems

 

Abstract: In order to solve the selection of the optimal wavelet basis for the gas pipeline leak monitoring, the feature of wavelet basis especially for gas pipeline leak monitoring and positioning has been summarized based on the analyze of wavelet basis parameters characteristic and gas pipeline leak negative pressure wave signal feature. A parameter which named reconstruction and mutation joint factor has been introduced to judge the de-noising and positioning effect, and the result has been gotten: the db5 wavelet basis is the optimal wavelet basis for the gas pipeline leak monitoring and positioning. The subsequent simulation test verified the correctness of the result.

 

Keywords: Wavelet basis, Gas pipeline leak monitoring, Positioning, de-noising, Reconstruction and mutation joint factor.

 

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