卫星目标电磁散射的高效区域分解边界积分法

Ximin Xin, Hongwei Gao*, Fan Lu, Bing Ma, Xinqing Sheng

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

recent years, the analysis and control of the electromagnetic scattering characteristics of satellites have received much attention because of the serious air and space safety problems. Typical satellites are mainly composed of main body, solar wings and multi-purpose antennas, and exhibit multi-scale geometric characteristics, which brings challenges to electromagnetic modeling technologies. Aiming at the analysis of electromagnetic scattering characteristics of satellites, this paper applies the discontinuous Galerkin domain decomposition method of integral equation (DG-DDM-IE) method to construct accurate and flexible modellings. Importantly, a cost-effective hybrid preconditioner is proposed for the multi-scale cases to improve the capability of the DG-DDM-IE method based on previous research on the diagonal domain block (DDB) preconditioner and the sparse approximate inverse (SAI) preconditioner. Numerical experiments on an object of complex multi-scale satellite show that the proposed DG-DDM-IE method has good convergence and scalability while consuming less memory.

投稿的翻译标题Efficient domain decomposition method of boundary integral equation for electromagnetic scattering of satellite targets
源语言繁体中文
页(从-至)218-226
页数9
期刊Dianbo Kexue Xuebao/Chinese Journal of Radio Science
38
2
DOI
出版状态已出版 - 4月 2023

关键词

  • boundary integral equation method
  • domain decomposition
  • electromagnetic scattering
  • multi-scale
  • preconditioner
  • satellites

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引用此

Xin, X., Gao, H., Lu, F., Ma, B., & Sheng, X. (2023). 卫星目标电磁散射的高效区域分解边界积分法. Dianbo Kexue Xuebao/Chinese Journal of Radio Science, 38(2), 218-226. https://doi.org/10.12265/j.cjors.2022023