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Proceedings Paper

Real-time processing of a phase-sensitive distributed fiber optic perimeter sensor
Author(s): C. K. Madsen; T. Snider; R. Atkins; J. Simcik
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Paper Abstract

This paper reports on recent advances made in real-time intruder detection for an intrusion system utilizing a phasesensitive optical time-domain reflectometer developed at Texas A&M University. The system uses light pulses from a highly coherent laser to interrogate an optical fiber. The Rayleigh backscattered light is detected, and real-time processing of the received signal is implemented using an FPGA-based system. Signatures from a single human on foot and automobile have been obtained, and are comparable to results obtained with previous signal processing techniques. Individual footsteps are clearly identified for the single human intruder. With the introduction of real-time signal processing, the system can be run continuously, only triggering intrusions when they are detected. These recent advancements allow us to process intruder signatures more effectively. With these advancements, this technology is a prime candidate for low-cost perimeter monitoring of high-value and high-security targets such as nuclear power plants, military bases, and national borders.

Paper Details

Date Published: 16 April 2008
PDF: 8 pages
Proc. SPIE 6943, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII, 694310 (16 April 2008); doi: 10.1117/12.777987
Show Author Affiliations
C. K. Madsen, Texas A&M Univ. (United States)
T. Snider, Texas A&M Univ. (United States)
R. Atkins, Texas A&M Univ. (United States)
J. Simcik, BCS Advanced Technologies LLC (United States)


Published in SPIE Proceedings Vol. 6943:
Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VII
Edward M. Carapezza, Editor(s)

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