影响精密单点定位收敛速度的因素分析  

FACTORS ANALYZE OF CONVERGENCE RATE FOR GPS PRECISE POINT POSITIONING

作　　者：林晓静[1] 张小红[1] 郭斐[1] 郭博峰[1] 

机构地区：[1]武汉大学测绘学院,武汉市珞喻路129号430079

出　　处：《测绘信息与工程》2010年第3期10-12,共3页Journal of Geomatics

基　　金：国家自然科学基金资助项目(40874017);国家"863计划"资助项目(2006AA12Z325);国家创新研究群体科学基金资助项目(40721001);武汉市晨光计划资助项目(200850731375)

摘　　要：分析了接收机类型、测站地理位置及卫星PDOP值三个因素对精密单点定位收敛速度的影响。结果表明,不同类型的接收机对PPP收敛速度有一定影响,但效果并不明显,纬度差异及PDOP值大小对PPP收敛速度的影响较为显著。We present that the effects on the convergence rate for GPS precise point positioning has something to do with the GPS receiver,the location of the observation point and the PDOP valve at that observation time.The results show that： different GPS receivers can affect the convergence rate but not significantly,the latitude and PDOP value can have an big impact on the convergence rate.The convergence rate in the areas of middle attitudes is much faster than that of the areas of the high latitude to achieve the same precision.When much satellites are available which means the PDOP value is small relatively,the convergence becomes faster obviously.

关 键 词：精密单点定位 收敛速度 接收机类型 地理位置 PDOP值 

分 类 号：P228[天文地球—大地测量学与测量工程]