雷达目标散射中心正向自动化建模方法研究与实现  

Research and implementation of forward automatic modeling method for radar target scattering center

作　　者：何思远[1] 朱凌昆 刘进 边志丹 张云华[1] 朱国强[1] HE Siyuan;ZHU Lingkun;LIU Jin;BIAN Zhidan;ZHANG Yunhua;ZHU Guoqiang(School of Electronic Information,Wuhan University,Wuhan 430000,China)

机构地区：[1]武汉大学电子信息学院,湖北武汉430000

出　　处：《系统工程与电子技术》2021年第10期2706-2717,共12页Systems Engineering and Electronics

摘　　要：为进一步优化散射中心参数化模型建模方法,本文从目标的几何模型出发,对复杂目标结构按几何面进行分区编号后,进行散射中心模型的正向自动化建模。自动化方法主要实现了模型长度、位置等参数的自动推算。该方法实现了对目标散射来源、散射机理和散射中心模型参数的全自动判定,提高了建模效率。首先对几何模型部件分解,然后采用射线追踪与分集技术,将目标散射场依照精度要求简化为部分射线贡献叠加,并研究了散射中心模型参数的自动推算。最后本文计算了一系列散射中心参数化模型,并与可靠数据对比,验证了本文自动化建模方法的有效性。In order to further optimize the modeling method of scattering center parametric model,the forward automatic modeling method of scattering center model is carried out based on the geometric model of the target,after the complex structure of the target is partitioned and numbered according to the geometric surface.The automatic method mainly realizes the automatic calculation of model length,position and other parameters.This method can automatically determine the scattering source,scattering mechanism and scattering center model parameters,and improve the modeling efficiency.Firstly,the components of the geometric model are decomposed.Then,the scattering field of the target is simplified as the superposition of partial ray contributions according to the accuracy requirements by using ray tracing and diversity technology,and the automatic calculation of the scattering center model parameters is studied.Finally,a series of scattering center parametric models are calculated and compared with reliable data to verify the effectiveness of the automatic modeling method.

关 键 词：电磁散射机理 正向自动建模 散射中心 射线追踪 目标识别 

分 类 号：O441[理学—电磁学]