协同计算在机载阵列天线分析中的应用

发布时间：2018-02-02 02:15

本文关键词： 协同计算矩量法核外求解机载天线　出处：《微波学报》2017年05期 　论文类型：期刊论文

【摘要】：在机载阵列天线的分析过程中,采用单一种类的电磁算法通常难以对之高效求解。为了快速准确分析此类复杂电大目标的辐射和散射问题,基于区域分解的思想建立了一种多算法协同计算的统一架构。将复杂电磁问题划分为多个子区域,对于问题的不同子区域可以根据该区域内的材料、结构、馈源等特征来选择适合的数值方法进行计算。该协同计算框架将不同种类的算法隔离开来,不同区域之间统一采用等效面上的近场交换区域间的耦合作用,提高了算法协同的灵便性。各子区域内部可以采用并行计算、核外存储等技术来加快计算的过程,提高求解问题的规模。数值计算结果验证了该方法的有效性,同时采用并行核外高阶、低阶矩量法及多层快速多极子混合方法高效解决了机载微带天线阵的辐射特性分析问题。
[Abstract]:In the analysis process of airborne array antenna, it is difficult to solve it efficiently by using a single kind of electromagnetic algorithm. In order to analyze the radiation and scattering problems of this kind of complex electrically large targets quickly and accurately. Based on the idea of domain decomposition, a unified framework of multi-algorithm cooperative computing is established. The complex electromagnetic problem is divided into several sub-regions, and the different sub-regions of the problem can be based on the material and structure of the region. In this framework, different kinds of algorithms are isolated, and the coupling between the near-field exchange regions on the equivalent surface is used uniformly among different regions. In each sub-region, parallel computing, out-of-core storage and other techniques can be used to speed up the calculation process and improve the scale of solving the problem. The numerical results verify the effectiveness of the method. At the same time, parallel high order, low order moment method and multilayer fast multipole hybrid method are used to efficiently solve the radiation characteristics analysis of airborne microstrip antenna array.
【作者单位】：西安电子科技大学电子工程学院;
【基金】：863计划(2014AA01A302) 教育部新世纪优秀人才支持计划(NCET-13-0949) 山东省重点研发计划(2015GGX101028) 国家自然科学基金(61301069) 中央高校基本科研业务费(JB160218)
【分类号】：TN820
【正文快照】： 引言在机载天线布局分析中通常需要精确分析机载天线的辐射特性。由于飞机平台的电尺寸很大,导致精确算法如矩量法(Method of Moments,Mo M)[1]、有限元法(Finite Element Method,FEM)[2]等产生巨大的计算量。同时,机载天线形式和结构的复杂性又限制了多层快速多极子(Multilev

【相似文献】