A Finite Element Method for the Electromagnetic Characterization of Quasi-Magnetostatic Problems Found in UXO Detection and Discrimination

Abstract

A Finite Element Method (FEM) is presented to solve for the scattered magnetic vector potential from arbitrarily polarized targets typical of those encountered in Unexploded Ordnance (UXO) detection. Most previously developed numerical methods only solved problems in which axial symmetry could be exploited. This, of course, severely limits the capabilities and utility of such methods. The method presented in this paper however seeks to overcome these limitations by allowing not only arbitrarily polarized targets but also allowing the size and shape of the target to be arbitrary as well. We show also the capabilities of the method for extending work in measurement technique and discrimination algorithm development.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2004
Accession Number
ADA438068

Entities

People

  • Daniel L. Faircloth
  • Lloyd S. Riggs
  • Michael E. Baginski
  • Sailaja Chilaka

Organizations

  • Auburn University

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Computational Complexity
  • Conductivity
  • Detection
  • Dipole Moments
  • Discrimination
  • Finite Element Analysis
  • Frequency
  • Frequency Response
  • Frequency Shift
  • Geometry
  • Magnetic Flux Density
  • Measurement
  • Symmetry
  • Thickness
  • Unexploded Ammunition
  • Uxo Detection

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Military/Explosive Ordnance Disposal (EOD) Technology