Tracking a human walker with a fiber optic distributed acoustic sensor

Traditional ground sensors can be used as security systems to detect third party intrusion, but are costly and cumbersome to scale up to cover a large area. Fiber optic distributed acoustic sensing (DAS) offers a solution that economically and instantaneously monitors up to 40 linear km of a border...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2013-05, Vol.133 (5_Supplement), p.3437-3437
Main Authors: Ku, Emery M., Duckworth, Gregory L.
Format: Article
Language:English
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Summary:Traditional ground sensors can be used as security systems to detect third party intrusion, but are costly and cumbersome to scale up to cover a large area. Fiber optic distributed acoustic sensing (DAS) offers a solution that economically and instantaneously monitors up to 40 linear km of a border or perimeter with a single system. The output of the OptaSense third generation fiber interrogation unit is spatially dense, coherent, and exhibits characteristics expected of traditional strain sensors. In this paper, DAS data are shown to indicate a walker’s directionality and support beamforming algorithms for localization.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4806070