Hybrid IE-DDM-MLFMA with Gauss-Seidel Iterative Technique for Scattering from Conducting Body of Translation

摘要

In this paper, a hybrid Integral Equation-Domain Decomposition Method-Multilevel Fast Multipole Algorithm (IE-DDMMLFMA) with Gauss-Seidel iterative technique is proposed to calculate the scattering from perfectly electric conducting Body of Translation (BoT). The BoT can be partitioned into translational nonoverlapping sub-domains. A hybrid local/global MLFMA framework is adopted to realize efficient matrix-vector multiplication in sub-domains and between sub-domains by utilizing the feature of translational invariance of BoT. To reduce the number of interactions between sub-domains, Gaussian-Seidel iterative technique is applied. Numerical examples are presented to demonstrate the efficiency of the present method.