本论文分析了基于北斗导航定位系统的三星定位系统总体结构和工作原理，对卫星导航中与定位精度有关的部分进行了研究。
This thesis analyzes the principle and architecture of three-star navigation system based on "Beidou" system and investigates the problems related with positioning precision.
三星时差定位星座是用于地面雷达辐射源定位的星座。
Three satellites cluster for time-difference localization is applied to find the radar beacon position on the ground.
从三星时差定位的原理出发，构建定位方程组，推导理论定位精度公式，详细分析各种星座布局对定位的影响。
Basing on the basic principle of tri-satellites geo-location using TDOA, theory location precision equation is developed and infection of various constellation shape are analyzed in detail.
利用精确的星间激光测距信息，提出了基于星间测距的三星时差定位系统标校方法。
Based on accurate distance information between satellites measured by laser, a calibration technique of a tri-satellite TDOA location system is put forward.
本文在北斗双星有源定位系统的基础上进行了三星无源定位的研究。
Basing on the Double star Active Positioning System, this article conducted the research on the Beidou Tri-star Passive Positioning System.
本文在北斗双星有源定位系统的基础上进行了三星无源定位的研究。
Basing on the Double star Active Positioning System, this article conducted the research on the Beidou Tri-star Passive Positioning System.
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