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Numerical Experiments using Efficient FMM for the EM Scattering by Underground Object  

Kim, Sung-Hwan (영남대 전자정보공학부)
Ahn, Chang-Hoi (영남대 전자정보공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.9, 2009 , pp. 1790-1795 More about this Journal
Abstract
For GPR(Ground Penetrating Radar) applications, an accurate analysis of the scattered field is necessary to identify the unknown target. Dyadic Green's function of the multilayered medium is developed and applied to analysis of the underground conducting object. We used method of moment(MOM) with dyadic Green's function, and Discrete Complex Image Method(DCIM). To reduce the computational complexity, fast multipole method is introduced and we showed the accuracy of the method comparing with the conventional method of moment. For investigating the underground conducting target, several numerical experiments were accomplished using this method.
Keywords
Fast multipole method; GPR; Electromagnetic scattering;
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