基于弹跳射线技术的三维GTD模型构建方法

TN95; 传统的基于弹跳射线(shooting and bouncing ray,SBR)技术的散射中心提取方法只考虑了理想点模型,但理想点模型无法描述散射中心的频率依赖特性.对此,提出一种基于弹跳射线技术的三维几何绕射理论(geometrical theory of diffraction,GTD)模型构建方法,在通过传统方法获取的理想点模型的基础上,利用射线管数据正向推算散射中心的频率依赖参数并修正其径向位置,实现了高精度三维GTD模型构建.仿真结果表明,点频、单视角下构建的三维GTD模型不仅能准确重构相同条件下的雷达散射截面(radar cross section,RCS),还能实现宽...

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Published in系统工程与电子技术 Vol. 43; no. 8; pp. 2028 - 2036
Main Authors 陆金文, 闫华, 张磊, 殷红成
Format Journal Article
LanguageChinese
Published 北京环境特性研究所电磁散射重点实验室,北京100854 01.08.2021
Subjects
散射中心建模
三维几何绕射理论模型
弹跳射线技术
径向位置修正
Online AccessGet full text
ISSN1001-506X
DOI10.12305/j.issn.1001-506X.2021.08.02

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Abstract TN95; 传统的基于弹跳射线(shooting and bouncing ray,SBR)技术的散射中心提取方法只考虑了理想点模型,但理想点模型无法描述散射中心的频率依赖特性.对此,提出一种基于弹跳射线技术的三维几何绕射理论(geometrical theory of diffraction,GTD)模型构建方法,在通过传统方法获取的理想点模型的基础上,利用射线管数据正向推算散射中心的频率依赖参数并修正其径向位置,实现了高精度三维GTD模型构建.仿真结果表明,点频、单视角下构建的三维GTD模型不仅能准确重构相同条件下的雷达散射截面(radar cross section,RCS),还能实现宽带RCS外推,能够满足目标宽带散射数据高效压缩和快速重构的应用需求.
AbstractList TN95; 传统的基于弹跳射线(shooting and bouncing ray,SBR)技术的散射中心提取方法只考虑了理想点模型,但理想点模型无法描述散射中心的频率依赖特性.对此,提出一种基于弹跳射线技术的三维几何绕射理论(geometrical theory of diffraction,GTD)模型构建方法,在通过传统方法获取的理想点模型的基础上,利用射线管数据正向推算散射中心的频率依赖参数并修正其径向位置,实现了高精度三维GTD模型构建.仿真结果表明,点频、单视角下构建的三维GTD模型不仅能准确重构相同条件下的雷达散射截面(radar cross section,RCS),还能实现宽带RCS外推,能够满足目标宽带散射数据高效压缩和快速重构的应用需求.
Author 闫华
张磊
殷红成
陆金文
AuthorAffiliation 北京环境特性研究所电磁散射重点实验室,北京100854
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LU Jinwen
ZHANG Lei
YIN Hongcheng
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Keywords 散射中心建模
三维几何绕射理论模型
弹跳射线技术
径向位置修正
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Snippet TN95; 传统的基于弹跳射线(shooting and bouncing ray,SBR)技术的散射中心提取方法只考虑了理想点模型,但理想点模型无法描述散射中心的频率依赖特性.对此,提出一种基于弹...
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Title 基于弹跳射线技术的三维GTD模型构建方法
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