Analysis of Electromagnetic Scattering from Absorptive Dielectric Rough Surfaces with Underneath Target

摘要

In the current work, we consider the problem of electromagnetic scattering from absorptive dielectric rough surfaces with underneath target. Previously we have extended the spectral acceleration method, which is restricted to nonabsorptive medium, to the more general cases of absorptive media. Here we combine the extended spectral acceleration method with the right preconditioned GMRES method, to analyze the scattering problem. Numerical results validate its efficiency and robustness. The proposed method is useful in a number of important applications such as target detection.