A DDM-Based Scheme for Analysis of Electromagnetic Scattering From Target and Rough Surface Composite Model

We present an optimized solution procedure for electromagnetic (EM) scattering problems of three-dimensional (3-D) target and rough surface composite model. By decomposing the composite surface into an open surface and a closed surface and applying a proposed domain decomposition method-based (DDM-based) scheme, we demonstrate a significant improvement in the iterative solution of these problems compared to the traditional electric field integral equation (EFIE) formulation.