雷达组网布站对数据融合精度的影响研究  

A Study on the Influence Between Station Distribution of Netted Radar System and Data Fusion Accuracy

作　　者：张伟[1,2] 马慧萍[2] 王永海[2] 康鹏[2] 

机构地区：[1]北京航空航天大学电子信息工程学院 [2]中国人民解放军63889部队

出　　处：《现代雷达》2010年第7期11-15,共5页Modern Radar

基　　金：总装备部预研课题

摘　　要：建立了雷达组网布站的结构模型和数学模型,为研究雷达组网对目标定位精度的空间分布情况,引入了组网雷达定位精度几何扩散因子(GDOP)的数学模型,并利用组网雷达定位精度GDOP描述了直线航路上雷达组网布站的定位精度分布;然后利用简单的最小均方误差融合估计算法对直线航路上的目标数据进行融合,并给出了雷达组网布站的评价指标与数据融合精度的对应关系,从而证明了在定位站几何布局已定的条件下可以用GDOP来表征航线数据融合定位精度的结论;最后给出了实例说明。A structure and mathematics model on the station distribution of netted radar system is established. For researching the dimensional distribution state of the target localization precision in the radar net, the mathematics model of the netted radar geometric dilution of precision （GDOP） is introduced, and the localization precision distribution in straight air lines about the station distribution of netted radar system is described using netted radar GDOP, then the target data precision in straight air lines is computed using the simple least mean square （LMS） data fusion algorithm, and the corresponding relation between the evaluation measurement and data fusion accuracy of the station distribution is given. So it is proved that we can use GDOP to show the line data fusion precision in definite station geometric distribution. Then a practice example is illustrated.

关 键 词：雷达组网布站 数据融合精度 定位精度 几何扩散因子 

分 类 号：TN953[电子电信—信号与信息处理]