基于自适应融合的弹道目标空间位置重构

发布时间：2018-02-23 22:15

本文关键词： 进动 Hough变换融合空间位置重构性能分析　出处：《北京航空航天大学学报》2017年06期 　论文类型：期刊论文

【摘要】：由于进动锥体目标参数存在耦合,单部雷达不易获取同时参数估计误差较大。针对这一问题,提出了一种联合多部雷达不同视角微动信息进行参数提取与融合的新方法。首先,对进动目标进行了建模和散射点距离像分析,并利用Hough变换实现了锥顶散射点的关联。然后,联立2部雷达的微动信息作为求解单元来对耦合参数进行解耦,求出相应的参数。同时以进动角为例进行了误差方差分析,以融合后误差方差最小为原则对权系数进行了求解,并对其余参数进行了相同的处理。最后,在一个进动周期内,根据求出的锥体顶点坐标和锥旋轴矢量实现了锥体目标空间位置的重构。仿真结果表明该融合方法能够提高参数精度并能对锥体空间位置进行重构。
[Abstract]:Because of the coupling of the parameters of the precession cone target, the single radar is difficult to obtain and the estimation error of the parameters is large. In order to solve this problem, a new method of parameter extraction and fusion based on the fretting information of different angles of view of multi-radar is proposed. The precession target is modeled and the range profile of scattering point is analyzed, and the cone-top scattering point is correlated by Hough transform. Then, the fretting information of the two radars is used as the solving unit to decouple the coupling parameters. The corresponding parameters are obtained. At the same time, the error variance analysis of precession angle is taken as an example, and the weight coefficient is solved on the principle of minimum error variance after fusion, and the other parameters are treated the same. Finally, in a precession period, According to the calculated coordinates of cone vertex and the vector of cone axis, the reconstruction of the space position of conical object is realized. The simulation results show that the fusion method can improve the precision of parameters and reconstruct the space position of cone.
【作者单位】：空军工程大学防空反导学院;
【基金】：国家自然科学基金(61372166,61501495)~~
【分类号】：TN957.51

【相似文献】