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在金属目标表面涂敷吸波材料可以有效地抑制雷达散射截面,增强雷达目标的隐身性能.因此,精确的计算涂敷介质目标的雷达散射截面(Radar Cross Section,RCS)尤为重要。文中提出了一种基于物理光学(Physical Optics,PO)的方法来计算复杂涂敷介质目标的RCS。首先以涂敷两层介质的平板为例将FEKO软件计算结果作为参照验证该算法的精确度,然后分别以涂敷两层介质的平板和复杂的导弹为例体现该算法的效率。
Therefore, it is very important to accurately calculate the Radar Cross Section (RCS) of the coated media target by coating the metal target surface with the absorbing material so as to effectively suppress the radar cross section and enhance the stealth performance of the radar target. In this paper, a method based on Physical Optics (PO) is proposed to calculate the RCS of complex coating media. Firstly, the calculation of the FEKO software is used as an example to verify the accuracy of the algorithm by taking a flat plate coated with two layers of media as an example. Then, the efficiency of the algorithm is illustrated by taking two plates of medium and complex missiles as examples respectively.