双基地及其联网系统的定位方法及精度分析  

THE LOCATION METHOD AND ACCURACY ANALYSIS IN BISTATIC AND ITS NETTED SYSTEMS

作　　者：何黎星[1] 孙仲康[1] 

机构地区：[1]国防科技大学电子技术系,长沙410073

出　　处：《航空学报》1993年第9期A542-A545,共4页Acta Aeronautica et Astronautica Sinica

摘　　要：讨论的双基地系统中,发射站只起照射目标的作用,而接收站测量距离和、方位角及俯仰角。分析了双基地系统的目标定位方法和定位误差。通过分析定位精度在受控区域内的分布,提示了双基地系统的定位性能。文中对组网双基地系统的定位处理方法进行了讨论,其中采用WLS(Weighted Least Square)算法进行数据融合处理,仿真结果表明,联网双基地系统的定位精度大有提高。The bistatic system considered in this paper consists of one transmitter and one receiver at different sites, in which the transmitter only emits radar signal, and the receiver measures range sum. a/imuth and elevation angles. The target location method and position errors are analyzed. By analyzing the region distribution of targer position accuracy in the controlled airspace, the location characteristics of the bistatic system are found. The location problem for netted bislatie systems is discussed, and the algorithm WLS (Weighted Least Squaer) is used for data fusion. It is shown that position creation accurary is improved greatly in the netted bistatic systems.

关 键 词：双(?)多基地雷达 目标定位 无线电导航 

分 类 号：TN965.5[电子电信—信号与信息处理]