改变散射体RCS方向特性的有源加载方法研究

改变散射体RCS方向特性的有源加载方法研究

内容简介：散射体的雷达横截面积（RCS）随着观测角度的不同而发生变化。对高频区的散射体电磁散射特性进行了建模，根据各个散射中心的位置关系和信号入射角度，计算散射体在特定方向上的RCS。提出了集中式和分布式的有源加载方法改变散射体RCS方向特性，通过施放有源干扰信号使散射体在特定方向上的RCS方向图出现凹点。仿真结果表明，该方法可以有效改变散射体的RCS方向特性，在特定方向上实现散射体射频隐身。

Abstract：The radar cross section（RCS） of scatterers varies with different observation angles. The electromagnetic scattering characteristics of scatterers in high frequency region is modeled, according to the position relationship of each scattering center and the angle of the incident signal, the RCS of the scatterer on the given direction can be computed. Centralized and distributed active loading methods changing the RCS directivity characteristics of scatterers are presented, and the RCS pattern of the scatterer on the given direction can be zeroed through emitting active jamming signal. The simulation result indicates that this method can change the RCS directivity of scatterers effectively and can be used in radio frequency stealth of the scatterer on the given direction.

作者：曹志华, 刘建, 邱卫军, 刘鹏,

关键词：雷达散射截面, RCS, 隐身技术, 雷达横截面积, 电子对抗, 有源干扰