Lasers, Fiber Optics, and Communications

Parametric modeling in distributed optical fiber vibration sensing system for position determination

[+] Author Affiliations
Hongyan Wu, Jian Wang, Bo Jia

Fudan University, Department of Materials Science, No. 220 Handan Road, Shanghai 200433, China

Opt. Eng. 55(4), 046104 (Apr 08, 2016). doi:10.1117/1.OE.55.4.046104
History: Received December 1, 2015; Accepted March 15, 2016
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Abstract.  Distributed optical fiber vibration sensing system is widely used as a monitoring system in communication cable and pipeline of long distances. When a vibration signal occurs at a particular position along the fiber, the response of the system, in the frequency domain, presents a series of periodic maxima and minima (or null frequencies). These minima depend on the position of the vibration signal along the fiber. Power spectral estimation methods are considered to denoise the power spectrum of the system and determine these minima precisely. The experimental results show higher accuracy of the position using a parametric model with appropriate selection of order p and q than just using fast Fourier transform algorithm.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Hongyan Wu ; Jian Wang and Bo Jia
"Parametric modeling in distributed optical fiber vibration sensing system for position determination", Opt. Eng. 55(4), 046104 (Apr 08, 2016). ; http://dx.doi.org/10.1117/1.OE.55.4.046104


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