摘要
提出了一种适合于GSM系统的基于OTD (Observedtimedifference)和TA(Timeadvance)的定位算法。方法是在一个构造的线性搜索域中 ,根据预定的判决准则 ,搜索移动台的最优坐标估计。这种算法数据利用率高 ,不但可以消除数据测量误差 ,而且可以消除非视距传播误差。该方法实现了高效率、高精度的移动台定位。
This paper proposes a new positioning algorithm that can be applied to both OTD (Observed Time Difference) and TA (Time Advance)-based location methods in GSM systems. This method utilizes a designated rule to search the MS location estimation on a constructed-line-region. This algorithm has high data-using efficiency and can eliminate not only measurement errors but also NLOS (Non Line of Sight) errors. It realizes a high-efficiency and high-accuracy MS location.
出处
《高技术通讯》
EI
CAS
CSCD
2002年第10期12-15,共4页
Chinese High Technology Letters
基金
973计划资助项目。
