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Proceedings Paper

Imaging dielectric and conductivity from GPR measurements
Author(s): Alan J. Witten
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Paper Abstract

It has been shown that, for non-conductive backgrounds and non-conductive spatial heterogenities, two- and three- dimensional images of spatial variations in wave speed can be reconstructed from broadband ground penetrating radar (GPR) measurements. In diffraction tomography, the reconstructed image is the so-called object function which, for non- conducting heterogeneities, is one minus the square of the real refractive index. In cases where spatial variations in electrical conductivity exist, the object function is complex with real part related to relative changes in the real refractive index and the imaginary part representing the spatial variations in conductivity. Thus, by considering the complex object function, it is possible to reconstruct images of both wave speed and conductivity. The procedure presented here is used to reconstruct images of wave speed and conductivity for several buried targets.

Paper Details

Date Published: 4 September 1998
PDF: 9 pages
Proc. SPIE 3392, Detection and Remediation Technologies for Mines and Minelike Targets III, (4 September 1998); doi: 10.1117/12.324157
Show Author Affiliations
Alan J. Witten, Univ. of Oklahoma (United States)

Published in SPIE Proceedings Vol. 3392:
Detection and Remediation Technologies for Mines and Minelike Targets III
Abinash C. Dubey; James F. Harvey; J. Thomas Broach, Editor(s)

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