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Proceedings Paper

Intruder detection and tracking using UWB technology
Author(s): Guy A. Schiavone; Parveen Wahid; Ravishankar Palaniappan; Judd Tracy; Eric Vandoorn; Paulis Micikevicius; Charles Hughes
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Paper Abstract

UWB communication is essentially the transmission and receiving of ultra short electromagnetic energy pulses. Short pulses mean wide bandwidths, often greatly exceeding 25% of the nominal center frequency. Modern UWB radio is characterized by very low power transmission (in the range of tens of microwatts) and wide bandwidths (greater than a gigahertz). One of the major applications of Ultra-wide band technology has been for detection and tracking of intruders in different environments. Based on some of our previous work [1,2] we developed a hybrid Ray-tracing/FDTD technique to study the indoor and outdoor propagation of UWB signals. The basic goal of this paper is to describe the experimental and simulation studies that were conducted to locate and track an intruder inside a UWB sensor web system. The sensor was developed using the Time Domain P-200 device and the software was developed using MATLAB. Return scans from UWB devices are analyzed to determine the noise floor and the signal strength. Using the noise floor level a threshold level is set above which the alarm will be triggered to determine the presence of an intruder. The probability of false alarm (PFA) is also determined using the Signal-to-Noise ratio and the threshold. We vary the PFA to lower the false alarm to a minimum level. We also determine the noise statistics of the system using Non-parametric Kolmogorov-Smirnov (KS) test. Using this basic UWB sensor web system we will try to determine the physical dimensions of the intruder and also track multiple intruders on the system.

Paper Details

Date Published: 5 August 2004
PDF: 11 pages
Proc. SPIE 5431, Targets and Backgrounds X: Characterization and Representation, (5 August 2004); doi: 10.1117/12.544218
Show Author Affiliations
Guy A. Schiavone, Univ. of Central Florida (United States)
Parveen Wahid, Univ. of Central Florida (United States)
Ravishankar Palaniappan, Institute for Simulation and Training (United States)
Judd Tracy, Institute for Simulation and Training (United States)
Eric Vandoorn, Intelligent Automation Inc. (United States)
Paulis Micikevicius, Univ. of Central Florida (United States)
Charles Hughes, Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 5431:
Targets and Backgrounds X: Characterization and Representation
Wendell R. Watkins; Dieter Clement; William R. Reynolds, Editor(s)

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