基站几何布局对定位误差的影响  

The Influence of Base-station Geometric Layout on Location Eror

作　　者：罗磊[1] 田增山[1] 孙冬梅[1] 刘治生[1] 

机构地区：[1]重庆邮电大学无线定位与空间测量研究所,重庆400065

出　　处：《通信技术》2008年第2期126-128,共3页Communications Technology

基　　金：重庆市科委自然科学基金(No.2006BB2376);重庆市教委科技研究项目(No.KJ070505)资助课题

摘　　要：针对目前无线网络定位精度不够高的缺点,文中利用误差分析的方法探讨了影响无线网络定位精度的有关因素。在不考虑非视距误差的情况下其定位误差主要取决于网络中各基站的几何分布。通过仿真显示,在不考虑非视距误差的情况下,基站几何布局对移动台的定位误差具有较大的影响。因此在多基站的环境下,文中给出一种定位基站选择算法,可以有效的提高定位精度。Aimed at the weakness of low position accuracy in current cellular network, this text explores the influence on wireless network positioning accuracy by using the method of error analysis. Without considering the non-line-of-sight errors, positioning error depends mainly on the geometric distribution of base stations in wireless network. The simulation indicates that, without considering the non-line-of-sight errors, the geometric layout of the base stations has serious influence on the mobile positioning error. Therefore, this paper proposes a choice of base stations positioning algorithm, which can effectively improve the positioning accuracy in many base stations environment.

关 键 词：无线网络 定位精度 误差分析 几何分布 

分 类 号：TN929.53[电子电信—通信与信息系统]