摘要
隐身结构是指由蒙皮和多种内部材料组成的、能满足承载要求、并具有明显降低雷达散射截面的结构。目的是探讨在常规布局飞航导弹上采用隐身结构的效果。以某常规布局飞航导弹模型为背景,设计出两种翼面隐身结构方案,并将这两种翼面隐身结构方案分别应用于飞航导弹模型的弹翼。应用时域有限差分法(FD-TD法)建立了飞航导弹模型电磁散射数值模型。通过数值仿真手段,计算、比较和分析了含有翼面隐身结构的飞航导弹和普通全金属飞航导弹的RCS值。数值仿真结果显示,与普通飞航导弹相比,这两种翼面隐身结构在许多方位上均能有效降低飞航导弹的RCS值。
The low observable structure is a type of the structures which consist of skin and varieties of internal materials, and have low radar cross section （RCS） with the considerations of stress and other requirements. This paper aims at investigating the effectivness of the application of the low observable structures to a conventional cruise misssle. Two kinds of wing structures with consideration of low observability were designed for the cruise missile. The finite difference-time domain （FD-TD） method was used in the numerical simulations of radar cross section for the cruise missle with the low observable wing structures. The simulation results of electromagnetic scattering characteristics of the cruise missle with the low observable wing structures were presented. The results indicate that the RCS of those cruise missle with the low observable wing structures is reduced substantially compared to the conventional cruise missile made of metal.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2006年第6期1369-1372,共4页
Journal of Astronautics
基金
国家自然科学基金资助项目(90305004)
关键词
隐身结构
飞航导弹
雷达散射截面
时域有限差分法
Low observable structures
Cruise missile
Radar cross section
The finite difference-time domain method
