GPS/GLONASS组合精密单点定位性能分析  

PERFOMANCE ASSESSMENT OF GPS/GLONASS PRECISE POINT POSITIONING

作　　者：王正军[1] 

机构地区：[1]长沙理工大学交通运输工程学院,长沙410076

出　　处：《大地测量与地球动力学》2012年第2期105-109,共5页Journal of Geodesy and Geodynamics

基　　金：湖南省科技厅科研项目(2009RS3001)

摘　　要：在阐述GPS/GLONASS组合精密单点定位(PPP)方法及模型的基础上,利用研发的软件从静动态定位精度和动态定位收敛性方面比较分析了GPS、GLONASS及GPS/GLONASS组合3种方式的精密单点定位结果。结果表明:3种方式都能获得厘米级的静动态定位精度,但组合方式较单一方式有较好的统计精度;在动态定位收敛性方面,组合方式能提高收敛速度,且在GPS卫星较少情形下尤为突出。After explaining the method and models for Precise Point Positioning （PPP） based on combined GPS and GLONASS, the positioning accuracy of static and kinematic PPP and convergence of kinematic PPP for GPS, GLONASS and their combination were compared with each other by using the data processing software devel- oped by the author. The PPP of numerical results show that ： GPS, GLONASS and their combination have access to centimeter-level static and kinematic positioning accuracy, but the last is better than the former two in statistical ac- curacy and the GPS/GLONASS combination can improve the convergence speed of kinematic PPP, particularly prominent for the case of less observed GPS satellite.

关 键 词：GPS GLONASS 精密单点定位(PPP) 组合方式 统计精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]