摘要
介绍了北斗双星定位系统的特点、功能、系统组成和工作原理,说明了北斗有源定位方式在应用方面的局限性。针对北斗有源定位方式不能无线电静默,和人们对具有无线电隐蔽性的卫星定位的需求,详细介绍一种北斗三星无源定位技术:包括工作原理、实现方法、定位精度分析和目前达到的定位精度。阐述了北斗三星无源定位技术的优点和应用形势。
The characteristics, function, structure and principle of the BeiDou Dual-Satellite Navigation System are described, and the limitation of the BeiDou＇ s active location in application is discussed. Considering that the active location mode of the BeiDou cannot keep radio silence and there are needs for radio-silent satellite location, a new approach of passive location technique with the three BeiDou geostationary satellites is presented, including principle, implementation, location accuracy analysis and the present obtainable result of location accuracy. In the end, the merits and application posture about the passive location technique with the three BeiDou geostationary satellites are elaborated.
出处
《无线电工程》
2006年第2期36-39,共4页
Radio Engineering
关键词
有源定位
无源定位
伪距
时钟偏差
海拔高度
三星无源定位
active location
passive location
pseudo-range
clock deviation
height above sea level
passive location with three geostaionary satellites.
