基于并行MLFMA分析飞机编队电磁辐射问题

Analysis of Electromagnetic Radiation of Formation-Aircrafts Using Parallel MLFMA

复杂电大尺寸目标的电磁特性分析一直是工程界的重点与难点课题之一,以往对军事目标的电磁散射及辐射问题分析,大多只包含了单个目标。在实际工程应用中,飞机、舰船等军事目标通常以编队形式出现,以高效完成作战任务。因此在研究工作中,必须要对复杂军事编队的电磁问题加以考虑。本文以F-22战斗机组成的编队为研究目标,采用并行多层快速多极子算法(MLFMA)研究飞机编队的电磁辐射问题,并将计算结果与商业软件Feko的仿真结果进行对比。研究结果表明,并行MLFMA算法适用于高频范围内飞机编队目标的电磁辐射问题的计算,具有与Feko相近的计算精度及计算效率。

The analysis of the electromagnetic characteristics of the complex large-scale target has always been one of the key and difficult issues in the engineering field. In the past, most of the analysis of electromagnetic scattering and radiation problems of military targets included only one single target. However, military targets such as aircrafts and warships usually appear in formation to effectively complete operational tasks in practical engineering applications. In this work, we consider the radiation problem of aircraft formation using F-22 fighter jet for example, and parallel multi-level fast multipole algorithm(MLFMA)is used. Numeral simulation shows that our PMLFMA code has a similar accuracy and efficiency with Feko, a commercial software.