二次散射作用散射中心三维位置正向推算
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- 英文论文题名：Forward Calculation of 3-D Position of Scattering Center Formed by Secondary Scattering
- 论文作者：张磊 ; 何思远 ; 朱国强
- 英文论文作者：Lei Zhang ; Si‐Yuan He ; Guo‐Qiang Zhu ; School of Electronic Information ; Wuhan University
- 年：2017
- 作者机构：武汉大学电子信息学院;
- 论文关键词：二次散射作用 ; 散射中心模型 ; 位置参数
- 英文论文关键词：Secondary scattering ; scattering center model ; position parameter
- 会议召开时间：2017-05-08
- 会议录名称：2017年全国微波毫米波会议论文集（中册）
- 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
- 语种：中文
- 分类号：TN011
- 学会代码：ZDWB
- 会议名称：2017年全国微波毫米波会议
- 会议地点：中国浙江杭州
- 主办单位：中国电子学会
- 学会名称：中国电子学会微波分会
- 页数：4
- 文件大小：1073k
- 原文格式：D
- 会议级别：全国
摘要
针对部件级散射中心参数化正向建模方法中二次散射作用的三维位置参数做出详细的分析及正向推算。首先分析产生强散射中心的二次散射作用的条件,其次介绍满足此条件下的位置参数的确定原理及方法:基于等效光程差理论、入射射线方向和面片的几何位置确定出二次作用射线等效点所在的三个平面,进而求出二次散射作用散射中心三维位置参数。最后对非强散射中心二次散射作用做出扩展性分析。
This paper conducts detailed analysis and forward calculation of 3-D position of scattering center formed by secondary scattering in the component-level parametric scattering center models established in a forward approach. Firstly, the conditions of producing strong scattering center formed by secondary scattering are analyzed. Secondly, under this condition, the principle and method of determining position are introduced. Three planes that the secondary scattering equivalent point is in are determined according to the optical path difference equivalence principle, the direction of incident ray and the geometrical position of small facets. The 3-D position of scattering center formed by secondary scattering can be calculated by the three planes. Finally, the weak scattering center formed by secondary scattering are analyzed additionally.
This paper conducts detailed analysis and forward calculation of 3-D position of scattering center formed by secondary scattering in the component-level parametric scattering center models established in a forward approach. Firstly, the conditions of producing strong scattering center formed by secondary scattering are analyzed. Secondly, under this condition, the principle and method of determining position are introduced. Three planes that the secondary scattering equivalent point is in are determined according to the optical path difference equivalence principle, the direction of incident ray and the geometrical position of small facets. The 3-D position of scattering center formed by secondary scattering can be calculated by the three planes. Finally, the weak scattering center formed by secondary scattering are analyzed additionally.
引文
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2 He Y,He S Y,Zhang Y H,et al.A Forward Approach to Establish Parametric Scattering Center Models for Known Complex Radar Targets Applied to SAR ATR[J].Antennas&Propagation IEEE Transactions on,2014,62(12):6192-6205.
3 He S Y,Deng F S,Chen H T,et al.Range Profile Analysis of the 2-D Target Above a Rough Surface Based on the Electromagnetic Numerical Simulation[J].IEEE Transactions on Antennas&Propagation,2009,57(10):3258-3263.
4 何洋.复杂目标精细化高频电磁建模方法及应用研究[D].武汉大学,2014.