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中文摘要：
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。
英文摘要：
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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