基于改进GO/AP法的三面角反射体RCS预估  

Evaluation of Radar Cross Section of Trihedral Corner Reflectors Based on Improved GO/AP Method

作　　者：胡生亮[1] 范学满 贺静波[1] HU Shengliang FAN Xueman HE Jingbo(Electronics Engineering College, Naval University of Engineering, Wuhan 430033, Chin)

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《雷达科学与技术》2017年第2期185-190,共6页Radar Science and Technology

基　　金：国家自然科学基金(No.61401493);装备预研基金重点项目(No.9140A01010415JB11002)

摘　　要：三面角反射体是一种重要的无源对抗器材,高效、准确、快速地预估其雷达散射截面积(Radar Cross Section,RCS)具有重要意义。以方形三面角反射体为例,推导了利用改进的几何光学/区域投影法(Geometrical Optics/Area Projection,GO/AP)进行RCS预估的一般流程;基于该流程对方形、圆形三面角反射体的单站RCS进行预估,将预估结果与RCS最大值的经验公式以及FEKO软件的仿真结果进行对比,表明改进的GO/AP法具有正确性、快速性和广泛适应性;针对异型三面角反射体,提出一种基于GO/AP算法利用SolidWorks软件进行RCS快速预估的方法。The trihedral corner reflector is an important kind of passive countermeasure equipment, so it is quite significant to evaluate its radar cross section（RCS） efficiently and accurately. Taking the square tri- hedral corner reflector as an example, the general process of RCS estimation using GO/AP method is de- duced, and the GO/AP method at boundary angles of incidence is improved. Then the RCS of square corner reflector and circular corner reflector are estimated by the improvedGO/AP method. Comparison with FE- KO simulation results as well as empirical formula of maximum value shows the validity and adaptability of the improved GO/AP method. Also, a fast RCS estimation method for all kinds of trihedral corner reflectors is proposed by combining the GO/AP method with the SolidWorks software.

关 键 词：雷达散射截面积 改进几何光学/区域投影法 方形角反射体 圆形角反射体 

分 类 号：TN957.84[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]