北斗无源定位技术  

Research on passive BeiDou navigation position technology

作　　者：薛鸿印[1] 李景森[1] 

机构地区：[1]船舶系统工程部驻707所军代表室,北京100036

出　　处：《现代防御技术》2005年第4期39-41,53,共4页Modern Defence Technology

摘　　要：研究无源北斗定位技术的目的,在于解决目前北斗定位体制下,存在用户数量受限、用户机需发射信号、定位数据更新率慢等缺点。利用现有的2颗北斗地球同步卫星、1颗备份卫星的星历信息以及测量获得的时差信息,可以推导出实现无源定位的数学模型。该方法通过试验数据获得了50 m范围的定位结果,从而验证了该项技术的正确性。The purpose is to avoid the shortcoming of Beidou Position system at present, such as limited user amount, user needing transmit signal, low position data update and so on. The ephemeris message of the two existing Beidou satellites and one backup satellite, and the measured time difference message are used in the research of passive Beidou position technology. About 50 m position result is obtained through measured data.

关 键 词：卫星导航 定位 算法 

分 类 号：P228.1[天文地球—大地测量学与测量工程]