星座通信系统兼容定位  

Compatible Positioning in the Constellation Communications System

作　　者：吴久银[1] 单超[1] 李广侠[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2004年第1期1-5,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：总装预研基金资助项目 (0 2 0 0 0 0 0 110 0 10 3 0 60 2 )

摘　　要：星座通信系统兼容定位就经济性、实用性而言对军事应用有重大价值。在确定采用多普勒测速定位方法的基础上 ,首先对兼容系统组成、导航信号、定位算法等方面进行了初步设计 ;然后 ,对定位中的主要误差源和定位时间窗口进行了分析 ,并定量分析了系统可以达到的 1 km的定位性能。最后分析了兼容系统提高定位精度的方法及在实现时存在的几个关键技术。The compatible positioning in the constellation communications system has great military values so far as economy and practicality are concerned. On the basis of adopting Doppler shift velocity measuring as the positioning method, principium designs of system makeup, navigation signal and positioning algorithm are presented firstly. Then, the main error effects and the time window of positioning are analyzed,and the positioning performance the system can achieve is also analyzed digitally. Finally, several methods improving positioning performance and a few key techniques existing in the course of realization are researched.

关 键 词：多普勒测速 兼容定位 几何误差因子 定位时间窗口 

分 类 号：TN927[电子电信—通信与信息系统]