Direct Inversion of the MLNG Field Evaluation Operator for Fast Solution of Electromagnetic Scattering Problems

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC) Pub Date : 2022-05-29 DOI:10.23919/AT-AP-RASC54737.2022.9814295

E. Chernokozhin, A. Boag

引用次数: 0

Abstract

A method for direct inversion of the EFIE operator is proposed. The method is based on the Multilevel Nonuniform Grid (MLNG) approach, which previously has been successfully used in fast iterative solvers. However, the MLNG approach is also suitable for direct solvers. The efficiency of the method stems from the fact that the direct inversion of MLNG-compressed integral operators reduces to the inversion of banded matrices.

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快速求解电磁散射问题的MLNG场评价算子的直接反演

提出了一种EFIE算子的直接反演方法。该方法基于多层非均匀网格(MLNG)方法，该方法已成功地用于快速迭代求解。然而，MLNG方法也适用于直接求解器。该方法的效率源于将mlng压缩积分算子的直接反演简化为带状矩阵的反演。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting (AT-AP-RASC)

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