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Analysis of electromagnetic scattering from dielectric objects above a lossy half-space by multiresolution preconditioned multilevel fast multipole algorithm

机译:用多分辨率预处理多级快速多极子算法分析有损半空间上方介质对象的电磁散射

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摘要

In this study, a synthesis of the multilevel fast multipole algorithm (MLFMA) and the multiresolution (MR) preconditioning technique is presented for the analysis of scattering from homogeneous dielectric targets above a lossy half-space. The Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) integral equation and the MLFMA are used for efficient analysis of scattering problems in half-space. The MR preconditioning technique is used to speed up the convergence rate of the iterative solver. The numerical results are presented to demonstrate that the proposed method is efficient for the scattering from homogeneous dielectric objects above a lossy half-space.
机译:在这项研究中,提出了一种多级快速多极子算法(MLFMA)和多分辨率(MR)预处理技术的综合方法,用于分析有损半空间上方均匀介电目标的散射。 Poggio-Miller-Chang-Harrington-Wu-Tsai(PMCHWT)积分方程和MLFMA用于有效分析半空间中的散射问题。 MR预处理技术用于加快迭代求解器的收敛速度。数值结果表明,所提出的方法对于从有损半空间上方的均匀介电物体散射是有效的。

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