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Optical Engineering

Correlation dimension locating method for phase-sensitive optical time domain reflectometry
Author(s): Yi Shi; Hao Feng; Yuqiu Huang; Zhoumo Zeng
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Paper Abstract

The coherent fading problem may lead to location error and bad location repeatability in the conventional moving differential method (MDM). A locating method based on the correlation dimension (CDM) in phase-sensitive optical time domain reflectometry is proposed. The CDM of backscattered traces is sensitive to weak vibration and immune to coherent fading, which is suitable to find out the vibration response section and then to calculate the location of the vibration source. Experimental results indicate that, compared with MDM, the standard deviation of location results, which represents location repeatability, can be improved from 25 to 2.1 m through CDM.

Paper Details

Date Published: 7 March 2016
PDF: 5 pages
Opt. Eng. 55(9) 091402 doi: 10.1117/1.OE.55.9.091402
Published in: Optical Engineering Volume 55, Issue 9
Show Author Affiliations
Yi Shi, Tianjin Univ. (China)
Hao Feng, Tianjin Univ. (China)
Yuqiu Huang, Tianjin Univ. (China)
Zhoumo Zeng, Tianjin Univ. (China)


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