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

摘要

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.