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Proceedings Paper

A novel intrusion signal processing method for phase-sensitive optical time-domain reflectometry (Φ-OTDR)
Author(s): Huijuan Wu; Xiaoyu Li; Zhengpu Peng; Yunjiang Rao
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Paper Abstract

Phase-sensitive Optical-Time-Domain Reflectometry (Φ-OTDR) is a useful distributed fiber-optic sensing technology to detect and locate multiple dynamic disturbances, offering a cost-effective and sensitive solution for intrusion monitoring of long perimeters. The Φ-OTDR is affected by laser frequency drift, air movement, transient acoustic interference and environmental noises. resulting in high Nuisance Alarm Rates (NARs). In this paper, we proposed a novel intrusion signal processing method based on the singular spectrum analysis of the longitudinal time sequence of the Φ-OTDR. The experimental results shows that true intrusions can be correctly distinguished from varying background noises and sound or air movement interferences. The probability for correct detection can be improved up to ~94% and false alarm rate can be controlled as low as ~6%.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91575O (2 June 2014); doi: 10.1117/12.2058503
Show Author Affiliations
Huijuan Wu, Univ. of Electronic Science and Technology of China (China)
Xiaoyu Li, Univ. of Electronic Science and Technology of China (China)
Zhengpu Peng, 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. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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