Mathematical analysis of marine pipeline leakage monitoring system based on coherent OTDR with improved sensor length and sampling frequency

A B Pnev; A A Zhirnov; K V Stepanov; E T Nesterov; D A Shelestov; V E Karasik

doi:10.1088/1742-6596/584/1/012016

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Mathematical analysis of marine pipeline leakage monitoring system based on coherent OTDR with improved sensor length and sampling frequency

A B Pnev, A A Zhirnov, K V Stepanov, E T Nesterov, D A Shelestov and V E Karasik

Published under licence by IOP Publishing Ltd
Journal of Physics: Conference Series, Volume 584, International Scientific Seminars on "Fundamental and Applied Problems of Photonics and Condensed Matter Physics" 30 May to 27 June 2014, Moscow, RussiaCitation A B Pnev et al 2015 J. Phys.: Conf. Ser. 584 012016DOI 10.1088/1742-6596/584/1/012016

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Abstract

A system based on coherent optical time domain reflectometry (OTDR) for subsea pipeline monitoring is described. The fiber sensor length is increased using erbium-doped fiber amplifier (EDFA) cascades. The sampling frequency is increased by dividing the fiber sensor into separate sensitive areas, with parallel scanning. The calculation of the erbium amplifier cascade spontaneous noise influence on the signal-to-noise ratio (SNR) is carried out.

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Mathematical analysis of marine pipeline leakage monitoring system based on coherent OTDR with improved sensor length and sampling frequency

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