摘要
研究了在组网雷达存在系统误差情况下的目标航迹关联问题,提出了一种基于复数域拓扑描述的系统误差配准前目标航迹对准关联算法。该算法通过构建粗关联波门来对目标航迹进行试验关联,以此建立航迹对准关联信息矩阵,并在对该矩阵进行合理拆分的基础上获得可行对准关联矩阵集合;由于目标航迹间的相对拓扑关系不受量测系统误差影响,算法可用来描述复数域中目标航迹的拓扑关系,并以此计算各可行对准关联矩阵的可行度,从而获得最终航迹对准关联关系。蒙特卡罗仿真结果说明,算法不依赖于估计雷达量测系统误差,实现了误差配准前的航迹准确关联,能够为后端的系统误差配准提供可靠的关联航迹数据。
The problem of track correlation in the presence of systematic errors in a radar network is researched in this paper,and based on topological description of complex number field,a track alignment-correlation algorithm before registration is proposed.By designing a pre-correlation gate to do test correlation of target tracks,the algorithm establishes a track alignment-correlation information matrix,which could be splitted rationally into a set of feasible alignment-correlation matrix.Because the space topology between the target tracks can not be influenced by measurement systematic errors of radars,the algorithm can be used to describe the topological relation between target tracks in complex number field.In this method,the feasibility of each feasible alignment-correlation matrix could be calculated to confirm the final alignment-correlation matrix containing the final associative relation between tracks of each radar.Finally,the Monte-Carlo simulation result shows that the algorithm can associate the tracks accurately before error registration,and can provide reliable associated tracks for the later registration.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2011年第3期560-566,共7页
Journal of Astronautics
基金
国家自然科学基金(60801049
61032001)
全国优秀博士学位论文作者专项资金资助(200443)
关键词
系统误差
空间拓扑
误差配准
航迹关联
雷达组网
Systematic error
Space topology
Error registration
Track correlation
Radar network
