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电大尺寸散射体研究,特别是覆盖有多层吸波结构的散射体研究,对提高军事装备隐身性能具有重要意义。利用射线跟踪技术和四端网络理论相结合的方法对任意形状的电大尺寸多层吸波散射体进行了研究。照射散射体的入射平面波由一组离散射线描述,散射体的局部区域看作多层平板结构,类比电大尺寸天线罩的电性能分析方法,从而获得散射体对某一入射平面波的空间后向散射特性,同时预估该散射体在空间的最大后向散射方向和相对散射强度。为提高散射体的隐身性能提供理论基础。
Research on large-scale electric diffusers, especially the scattering body covered with multi-layer absorbing structures, is of great significance to improve stealth performance of military equipment. Using the combination of ray tracing technology and the theory of four-terminal network, we study the large size multi-layered wave scattering scatterers of arbitrary shape. The incident plane wave of the scattering scatterer is described by a set of discrete rays. The local area of the scatterer is considered as the electrical performance analysis method of the multilayer flat plate structure and the large size radome, so that the spatial backscattering of an incident plane wave by the scatterer is obtained Properties, and also predict the maximum backscattering direction and relative scattering intensity of the scatterer in space. Provide a theoretical basis for improving the stealth performance of scatterers.