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Proceedings Paper

Soil moisture distribution around land mines and the effect on relative permittivity
Author(s): Jan B. Rhebergen; Henk A. Lensen; Piet B. W. Schwering; Garciela Rodriguez Marin; Jan M. H. Hendrickx
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Paper Abstract

Soil water content, relative permittivity, electrical conductivity, thermal conductivity and heat capacity, directly or indirectly affect the detection capabilities of sensors used for land mine detection. The most important of these is water content since it also influences the other properties. Therefore an experiment was set up where water was applied to a test area and the water content was monitored over time. Simultaneously, measurements with a ground penetrating radar (GPR) were carried out. Subsequently the measurements of both the water content reflectometers (WCR) and GPR were compared against the outcome of a soil water content model and a model relating soil water content with medium relative permittivity. We find that the introduction of water in a dry sand soil, increases the impedance contrast of the land mine with respect to its surrounding (i.e. stronger electromagnetic signatures) which may result in better detection. Alternative effects also seem play a role in finding and identifying features of potential targets.

Paper Details

Date Published: 13 August 2002
PDF: 12 pages
Proc. SPIE 4742, Detection and Remediation Technologies for Mines and Minelike Targets VII, (13 August 2002); doi: 10.1117/12.479098
Show Author Affiliations
Jan B. Rhebergen, TNO (Netherlands)
Henk A. Lensen, TNO (Netherlands)
Piet B. W. Schwering, TNO (Netherlands)
Garciela Rodriguez Marin, New Mexico Tech (United States)
Jan M. H. Hendrickx, New Mexico Tech (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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