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Proceedings Paper

Three-dimensional FDTD model for GPR detection of objects buried in realistic dispersive soil
Author(s): Panagiotis Kosmas; Yuequan Wang; Carey M. Rappaport
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Paper Abstract

The use of ground penetrating radar (GPR) is one of the most popular techniques for the detection of anti-personnel mines and therefore it is desirable to accurately model such systems. For many GPR applications, FDTD models used to simulate the system are two-dimensional, because they are simple to implement and computationally inexpensive. However, a three-dimensional model is more accurate and allows complete freedom for the location of the object relative to the receivers. Instead of fully modeling the transmitter and receiver elements, and adding significant complexity, the transmitted field in this study is experimentally measured and used as the model's excitation. The model developed simulates a GPR system consisting of a parabolic reflector transmitter and a multi-static receiver array. The model is tested for both flat and rough ground with a Gaussian variation. The results are compared with experimental data and are found to be very accurate. The validation of this approach makes the model a powerful tool that can be used in different applications, where the exciting field is computationally or experimentally specified.

Paper Details

Date Published: 13 August 2002
PDF: 9 pages
Proc. SPIE 4742, Detection and Remediation Technologies for Mines and Minelike Targets VII, (13 August 2002); doi: 10.1117/12.479104
Show Author Affiliations
Panagiotis Kosmas, Northeastern Univ. (United States)
Yuequan Wang, Northeastern Univ. (United States)
Carey M. Rappaport, Northeastern Univ. (United States)

Published in SPIE Proceedings Vol. 4742:
Detection and Remediation Technologies for Mines and Minelike Targets VII
J. Thomas Broach; Russell S Harmon; Gerald J. Dobeck, Editor(s)

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