Disturbance Detection in Distributed Fiber-Optic Sensor Based on Time-Delay Estimation

Haiyan, 许海燕 Xu; Qie, 徐锲 Xu; Qian, 肖倩 Xiao; Yi, 张毅 Zhang; Bo, 贾波 Jia

doi:10.3788/aos20103006.1603

Cited by 4 publications

(2 citation statements)

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“…In recent years, distributed fiber optic sensors have widely application in long-distance, strong-EMI condition for monitoring vibration and sound signals [1][2][3][4][5]. Distributed fiber optic sensors are multiplexed in a single fiber as a signal carrier and distributed sensing unit, pick up the external disturbance, re-use of spectrum analysis of the signal demodulation technique, positioning the disturbance source monitoring [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Signal Recognition Basing on Optical Fiber Vibration Sensor

Hai

Zhang

2013

AMM

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Distributed optical fiber sensor can acquire the information of physical field along time and spatial continuous distribution. It plays an important role in long-distance oil and electricity transmission and security. In this paper, the author introduced the universal steps in triggering pattern recognition, which includes signal characteristics extracting by accurate endpoint detecting, templates establishing by training, and pattern matching. By training the samples acquired in the laboratory, three templates are established. And pattern matching had been done between templates and all the samples. The results show that, 87.5 percent of the samples are matched correctly with the triggering patterns they are belonging to.

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Section: Introductionmentioning

confidence: 99%

“…In equation (5), i E is the short-term energy of the 100 points that begins with the point i, 100 + i E is the short-term energy of the 100 points that begins with the point i+100.…”

Section: A Introduction Of the Systemmentioning

confidence: 99%