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基于并行VSIE-MLFMA的任意非均匀等离子鞘套与天线窗一体化电磁建模技术及其应用

Integrated Electromagnetic Modeling Technology of Arbitrary Inhomogeneous Plasma Sheath and Radome based on Parallel VSIE-MLFMA and Application
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摘要 为分析高速飞行时临近空间飞行器外等离子体鞘套对天线辐射特性的影响,采用基于快速多层快速多极子(VSIE-MLFMA)的体面积分(VSIE-MLFMA)方法来建模并分析飞行器表面的等离子体的电磁特性。就某飞行器模型在特定弹道下的天线窗及等离子体参数,分别仿真了工作频率为S、C波段及Ka波段下,复合环境对天线辐射特性的影响。并将计算方法与OpenMP-MPI并行策略结合,显著提高了求解速度,使其适用于处理等离子体参数变化复杂的电大载体条件下?的天线窗动态热透波仿真问题。 In order to analyze the influence of outer plasma sheath of near apace vehicle on antenna radiation characteristics during high-speed fight,adopts the calculation method of volume-surface integral equation(VSIE)based on multilevel fast multirole algorithm(MLFMA)to model and analyze the electromagnetic characteristics of the plasma on the aircraft surface.According to the radome and plasma parameters of an aircraft model under specific trajectory,adopts the influence of composite environment on antenna radiation characteristics under the working frequencies of S,C and Ka bands.The combination of OpenMP-MPI parallel strategy significantly improves the solution speed and makes it suitable for dealing with the complex changes of plasma parameters on a electrically large carrier.
作者 林朝光 刘璐 宗显政 聂在平 孙格靓 Lin Chao-guang;Liu Lu;Zong Xian-zheng;Nie Zai-ping;Sun Ge-liang(Science and Technology on Space Physics Labpratory,Beijing,100076;University of Electronics Science and Technology of China,Chengdu,611731)
机构地区 空间物理重点实验室 电子科技大学
出处 《导弹与航天运载技术》 CSCD 北大核心 2022年第4期132-136,共5页 Missiles and Space Vehicles
关键词 等离子体 飞行器 天线 VSIE plasma aircraft antenna VSIE
分类号 O441.4 [理学—电磁学]
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导弹与航天运载技术
2022年 第4期

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