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Proceedings Paper

Novel multi-point disturbance detection method for polarization-sensitive optical time domain reflectometry
Author(s): Huijuan Wu; Jun Liu; David Atubga; Linqiang Zhang; Yunjiang Rao
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Paper Abstract

Multi-point disturbance detection is always challenging in polarization-sensitive optical time domain reflectometry (POTDR). In this paper, we propose a novel method to solve such a challenging problem by accumulating the temporally differentiated OTDR traces and building up a two-dimensional temporally-spatially evolving graph, and then using edge detection and automatic-clustering, adopted from imaging processing techniques, to discriminate different disturbance points and find out their locations. Many multi-point disturbance cases are tested and the results show that the method proposed has better performance than the conventional direct differentiation method and the Fast Fourier Transform (FFT) spectrum analysis. In particular, the location accuracy has been improved significantly.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344Q (28 September 2015); doi: 10.1117/12.2194495
Show Author Affiliations
Huijuan Wu, Univ. of Electronic Science and Technology of China (China)
Jun Liu, Univ. of Electronic Science and Technology of China (China)
David Atubga, Univ. of Electronic Science and Technology of China (China)
Linqiang Zhang, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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