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Proceedings Paper

Semianalytic mode matching techniques for detecting nonmetallic mines buried in realistic soils
Author(s): Ann W. Morgenthaler; Carey M. Rappaport
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Paper Abstract

The Ultra-Wideband detection of plastic land mines buried in lossy, dielectric soils is simulated design a new semi- analytic mode matching (SAMM) algorithm. Here, we apply SAMM to the 3D canonical problem of finding the nonspecular reflection of an obliquely-incident plane wave ona lossy dielectric half-space containing a small, shallowly-varying convex-shaped mines buried under modestly rough ground. In the SAMM algorithm, the frequency-dependent scattered fields are constructed form moderately rough ground. In the SAMM algorithm, the frequency-dependent scattered fields are constructed form moderately low-order modal superpositions of spherical waves, each satisfying the Helmholtz equation in its respective material. By least squares fitting, mode coefficients are found which optimally match all boundary conditions at designated points along the boundary surfaces. Spherical wave expansions are chosen at multiple coordinate centers so that small numbers of modes are needed to given convergent results.

Paper Details

Date Published: 22 August 2000
PDF: 11 pages
Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, (22 August 2000); doi: 10.1117/12.396200
Show Author Affiliations
Ann W. Morgenthaler, Northeastern Univ. (United States)
Carey M. Rappaport, Northeastern Univ. (United States)


Published in SPIE Proceedings Vol. 4038:
Detection and Remediation Technologies for Mines and Minelike Targets V
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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