| Title |
Numerical Experiments using Efficient FMM for the EM Scattering by Underground Object |
| Authors |
김승환(Kim, Sung-Hwan) ; 안창회(Ahn, Chang-Hoi) |
| Keywords |
Fast multipole method ; GPR ; Electromagnetic scattering |
| 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. |