| 基于MLFMA的飞行器电磁散射特性分析 |
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| 引用本文： | 刘战合,田秋丽,周钧,姬金祖.基于MLFMA的飞行器电磁散射特性分析[J].合肥工业大学学报(自然科学版),2008,31(12). |
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| 作者姓名： | 刘战合 田秋丽 周钧 姬金祖 |
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| 作者单位： | 1. 北京航空航天大学,航空科学与工程学院,北京,100083
2. 南京师范大学,公共管理学院,江苏,南京,210097 |
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| 基金项目： | 973基础资助项目
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国家自然科学基金重大研究计划重点资助项目
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| 摘 要： | 文章通过计算结果与测试结果、金属球双站RCS的Mie级数解结果的对比,证明开发的多层快速多极子算法程序可用于飞行器不同布局电磁散射特性研究;采用该算法求解分析几种飞行器典型布局沿方位角变化时的电磁散射特性,由不同角域内的算术均值、曲线趋势研究了各种布局的优缺点和相应的作战任务;从飞行器外形结构出发,分析了RCS曲线分布的原因,并提出根据作战任务进行飞行隐身设计的思想。
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| 关 键 词： | 多层快速多极子算法 电磁散射 雷达散射截面 飞行器 隐身设计 |
Analysis of scattering characteristics of aircrafts based on MLFMA |
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| LIU Zhan-he,TIAN Qiu-li,ZHOU Jun,JI Jin-zu.Analysis of scattering characteristics of aircrafts based on MLFMA[J].Journal of Hefei University of Technology(Natural Science),2008,31(12). |
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| Authors: | LIU Zhan-he TIAN Qiu-li ZHOU Jun JI Jin-zu |
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| Institution: | LIU Zhan-he1,TIAN Qiu-li2,ZHOU Jun1,JI Jin-zu1 |
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| Abstract: | The calculational curves,experimental curves and Mie solutions are compared,and the results show that the developed program for the multilevel fast multipole algorithm(MLFMA) can be used to investigate the scattering characteristics of aircrafts with different configuration.Based on the MLFMA,the scattering characteristics of several typical aircrafts are gained and analyzed by changing the in-coming wave along azimuth.From the radar cross section(RCS) averages of different angle zones and the shapes of the curves,the advantages or disadvantages of different configurations and their appropriate missions are studied.It is presented that the aircraft's mission should be considered in the stealth design. |
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| Keywords: | multilevel fast multipole algorithm(MLFMA) electromagnetic scattering radar cross section(RCS) aircraft stealth design |
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