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基于目标属性散射中心模型的正向参数化建模

Forward Parametric Modeling Based on Target Attribute Scattering Center Model

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摘要

针对雷达目标自动识别,对目标属性散射中心进行了参数化建模。建模前,基于实体部件分解的目标进行高精度几何建模,提出了一套含空间射线分集的射线追踪方法。基于此,发展了一套基于空间射线分集的目标散射中心参数化正向建模方法。在现有的提取面类散射源的基础上,增加了目标边缘强散射源的散射中心,同时推算出了其模型参数。将该方法所得的结果与现有高频方法的结果进行对比,验证了参数化模型的有效性。所提出的参数化建模的方法为雷达目标特征数据库的获取提供了一条新的辅助途径。

Abstract

The target attribute scattering center is parametrically modeled for automatic identification of the radar targets. Before generating the model, high-precision geometric modeling is applied based on the decomposition of the solid parts, and a set of ray tracing methods exhibiting spatial ray diversity is proposed. Based on this ray tracing step, a set of parametric forward-modeling methods is developed for estimating the center of scattering based on the spatial ray diversity. Further, the center of the strong scattering source with respect to the target edge is added on the basis of the already extracted surface scattering source. The model parameters are also derived during this additive process. The results obtained using this method are compared with those obtained using the typically used high-frequency method, confirming the effectiveness of the parametric model. Thus, the proposed method for parametric modeling provides a new auxiliary mechanism for compiling the radar target features.

Newport宣传-MKS新实验室计划
补充资料

DOI:10.3788/LOP56.122901

所属栏目:散射

基金项目:国家自然科学基金;

收稿日期:2018-11-27

修改稿日期:2019-01-10

网络出版日期:2019-06-13

作者单位    点击查看

谢若晗:武汉大学电子信息学院, 湖北 武汉 430072
何思远:武汉大学电子信息学院, 湖北 武汉 430072
朱国强:武汉大学电子信息学院, 湖北 武汉 430072
张云华:武汉大学电子信息学院, 湖北 武汉 430072

联系人作者:何思远(siyuanhe@whu.edu.cn)

备注:国家自然科学基金;

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引用该论文

Ruohan Xie, Siyuan He, Guoqiang Zhu, Yunhua Zhang. Forward Parametric Modeling Based on Target Attribute Scattering Center Model[J]. Laser & Optoelectronics Progress, 2019, 56(12): 122901

谢若晗, 何思远, 朱国强, 张云华. 基于目标属性散射中心模型的正向参数化建模[J]. 激光与光电子学进展, 2019, 56(12): 122901

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