基于GRECO与GO-PO算法的复杂目标RCS计算与分析  

RCS Computation and Analysis of Complex Targets Based on GRECO and GO-PO Algorithms

作　　者：陈海青 汪刘应 刘顾 葛超群 许可俊 CHEN Haiqing;WANG Liuying;LIU Gu;GE Chaoqun;XU Kejun(School of Combat Support,Rocket Force University of Engineering,Xi'an 710025)

机构地区：[1]火箭军工程大学作战保障学院,西安710025

出　　处：《舰船电子工程》2020年第10期168-172,共5页Ship Electronic Engineering

摘　　要：针对复杂电大尺寸目标的电磁散射特性分析,分析了传统高频分析方法在仿真计算时的不足,论述了基于物理光学(PO)法与几何光学法(GO)的形成的GO-PO混合算法的运算机理和优点,并运用GRECO和GO-PO方法计算了组合体和坦克车模型的雷达散射截面RCS,并通过与用物理光学(PO)法和时域有限差分(FDTD)算法进行的对比分析,证明了基于GRECO与GO-PO算法的在电大尺寸复杂目标雷达散射特性分析上有效性。Aiming at the analysis of electromagnetic scattering characteristics of complex electrically large targets,the short⁃comings of traditional high frequency analysis method in simulation calculation are analyzed.The operational mechanism and advan⁃tages of GO-PO hybrid algorithm based on the formation of physical optics(PO)method and geometrical optics(GO)method are discussed.Combinations and tanks are calculated by using GRECO and GO-PO methods.The RCS of vehicle model is compared with that of physical optics(PO)and finite-differemce time-domain method(FDTD),which proves the effectiveness of GRECO and GO-PO algorithms in the analysis of radar scattering characteristics of electrically large and complex targets.

关 键 词：复杂目标 雷达散射截面 物理光学 几何光学 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]