高分辨雷达目标电磁散射特性复现方法  

The Method of Reproducing of High-resolution Radar Target Electromagnetic Scattering Properties

作　　者：刘颖 董兴佳 李昂 何金叡 LIU Ying;DONG Xingjia;LI Ang;HE Jinrui(Unit 63861 of PLA,Baicheng 137000,China)

机构地区：[1]解放军63861部队,吉林白城137000

出　　处：《火力与指挥控制》2022年第7期126-132,共7页Fire Control & Command Control

摘　　要：针对传统靶标不能反映真实目标的多散射中心所导致的角闪烁效应,难以满足高分辨雷达的试验鉴定需求的问题,开展了高分辨雷达目标电磁散射特性复现方法研究,构建了基于散射中心理论的等效物理模型,实现了基于盖氏圆盘算法、矩阵束算法和最小二乘法提取散射中心个数、类型、空间位置和幅度,设计了模拟靶标复现方案。以某目标模型为例设计等效模型靶标,并进行加工与暗室测试,验证了该方法对雷达制导武器靶标建设有指导意义。Currently,traditional targets cannot reflect the angular flicker effect caused by multiple scattering centers of real targets and,thus,can rarely meet the demand for the test qualification of high-resolution radar.Research on methods for reproducing of high-resolution radar target electromagnetic scattering properties is carried out,an equivalent physical model based on the scattering center theory is established;the extraction of the number,type,spatial position,and amplitude of scattering centers based on the Gerschgorin disk algorithm,matrix pencil algorithm,and least squares method is realized;and a simulated target reproducing scheme is designed.A target model is used as an example to design an equivalent model target,and processing and anechoic chamber testing are carried out to verify the guiding significance of this method for the construction of radar-guided weapon targets.

关 键 词：高分辨雷达 GTD模型 散射中心 等效模型靶标 

分 类 号：TN955[电子电信—信号与信息处理]