非合作雷达目标散射中心关联和三维重建算法  

Method of Scattering Centers Association and 3D Reconstruction for Non-cooperative Radar Target

作　　者：张颖康[1] 肖扬[1] 胡绍海[1] 

机构地区：[1]北京交通大学信息科学研究所,北京100044

出　　处：《电子与信息学报》2011年第9期2076-2082,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60572093);教育部博士点基金(20050004016);北京交通大学优秀博士生创新研究基金(141095522)资助课题

摘　　要：针对非合作雷达目标3维重建技术中各未知视角下1维散射中心难以关联的问题,该文提出了一种基于几何约束的散射中心关联方法。此方法通过对反投影误差的检验实现了对部分可靠散射中心的自动选择和有效关联。同时,利用由已关联散射中心距离数据估计出的目标运动参数,实现目标上更多散射中心的关联和3维重建。仿真实验证明,该文提出的算法能够适用于1维散射中心存在缺失点、虚假点和重叠点的复杂情况,有效增强了未知运动目标散射中心关联和重建的鲁棒性。For the problem of associating the 1D scattering centers at unknown viewing angles existed in the technique of non-cooperative radar target 3D reconstruction,a method of scattering centers association based on geometric constraint is proposed.In the method,a part of reliable scattering centers are automatically selected and effectively associated via checking the back-projection error.Meanwhile,with the motion parameters estimated from the range data of the associated scattering centers,more scattering centers on the target can be associated and reconstructed.The simulations verify that,the proposed algorithm is applicable to the complex situations where missing,fault and overlapping points existed in the 1D scattering centers,and the robustness of the scattering centers association and reconstruction for unknown moving target can be effectively enhanced.

关 键 词：雷达3维成像 3维散射中心 散射中心关联 非合作目标 

分 类 号：TN957.52[电子电信—信号与信息处理]