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Proceedings Paper

A novel FBG-based fence with high sensitivity and low nuisance alarm rate
Author(s): Huijuan Wu; Yunjiang Rao; Shanshan Li; Xianglin Lu; Yu Wu
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Paper Abstract

A quasi-distributed FBG-based fiber-optic fence is investigated in this paper. A novel intrusion detection method is proposed based on the autocorrelation characteristics of the signal with and without disturbances, which is very effective to detect extremely weak signals even from nonequivalent sensor nodes in a large sensor network. When analyzing the intrusion signal's characteristics and excluding the false alarm sources, such as environmental interferences and others, Nuisance Alarm Rate (NAR) is well controlled while extremely high Probability of Detection (PD) is assured. The experimental results show that the PD of the fiber fence using these methods for detecting the single and multiple events can be both higher than 99.5%, while the NAR can be controlled well below 0.5%.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77537R (18 May 2011); doi: 10.1117/12.884920
Show Author Affiliations
Huijuan Wu, Univ. of Electronic Science and Technology of China (China)
Yunjiang Rao, Univ. of Electronic Science and Technology of China (China)
Shanshan Li, Univ. of Electronic Science and Technology of China (China)
Xianglin Lu, Univ. of Electronic Science and Technology of China (China)
Yu Wu, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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