基于多层非均匀网格法的准平面电磁散射问题直接求解器

2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) Pub Date : 2021-08-28 DOI:10.23919/URSIGASS51995.2021.9560292

E. Chernokozhin, A. Boag

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引用次数: 1

摘要

建立了准平面电磁散射问题的直接求解器。该算法由多层区域分解、秩揭示过程(RRP)和线性代数方程压缩系统的直接解组成。RRP是基于基于多级非均匀网格(MLNG)插值网格的奇异值分解(SVD)，从下到上逐级进行的。数值实验证明了该求解器的有效性。

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Direct Solver Based on the Multilevel Nonuniform Grid Approach for Quasi-Planar Electromagnetic Scattering Problems

A direct solver for quasi-planar electromagnetic scattering problems is developed. The algorithm consists of a multilevel domain decomposition, a rank revealing procedure (RRP), and a direct solution of the resulting compressed system of linear algebraic equations. The RRP is performed step by step from the bottom to top levels and is based on the singular value decomposition (SVD) using the interpolation grids of the Multilevel Nonuniform Grid (MLNG) approach. The efficiency of the solver is demonstrated by numerical experiments.

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来源期刊

2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

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