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Proceedings Paper

Fiber optic perimeter protection sensor with intruder localization
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Paper Abstract

This paper presents investigation results of a new generation of the fibre optic perimeter sensor in a two Sagnac interferometers configuration. This system can detect a potential intruder and determine its position along a protected zone. A multiresolution wavelet analyses of the signal is used to determine its start point. First, we made use of decomposition, thresholding and reconstruction of the signal by means of a Daubechies wavelet. Consequently, high-frequency noise was removed from the signal. Next, the signal was exposed to an approximation process by means of a multiresolution Haar wavelet. Statistical analysis of this signal enabled us to determine an amplitude criterion for calculation of a start point for slowly-changeable signals. The criterion was a standard deviation of the amplitude increase of the signal after approximation. Arrangement of a laboratory model of the sensor and its signal processing scheme is presented. During research of a laboratory model, it was possible to detect the position of the disturbance with resolution of about 20 m along a 6-km long section.

Paper Details

Date Published: 30 November 2004
PDF: 8 pages
Proc. SPIE 5611, Unmanned/Unattended Sensors and Sensor Networks, (30 November 2004); doi: 10.1117/12.578186
Show Author Affiliations
Marek Zyczkowski, Military Univ. of Technology (Poland)
Mieczyslaw Szustakowski, Military Univ. of Technology (Poland)
Norbert Palka, Military Univ. of Technology (Poland)
Marcin Kondrat, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 5611:
Unmanned/Unattended Sensors and Sensor Networks
Edward M. Carapezza, Editor(s)

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