GPS伪距改正及精密动态单点定位精度分析  

Pseudo-range correction and kinematic point positioning accuracy

作　　者：蔡艳辉[1] 程鹏飞[1] 李夕银[1] 

机构地区：[1]中国测绘科学研究院,北京100039

出　　处：《全球定位系统》2004年第2期11-15,37,共6页Gnss World of China

摘　　要：给出了GPS伪距定位在动态模式下的改正模型 :对流层折射延迟、电离层延迟改正、地球自转改正、相对论效应改正、卫星天线和接收机天线改正、固体潮改正。并针对单频GPS接收机进行动态伪距定位的试验 ,分析了各项改正对GPS伪距定位的精度影响及综合改正后的精度分析。In real-time mode, some kinds of error corrections for GPS pseudo-rang are given in the paper, i.e. tropospheric refraction delay, ionospheric refraction delay, earth-rotating correction, relativity effect, satellite antenna eccentricity, solid tide correction. Based on experiments of single frequency point positioning, each way of correction has been analysed in this paper. Finally,give out the accuracy of point positioning.

关 键 词：GPS 单点定位 对流层折射延迟 电离层折射延迟 固体潮 伪距定位 定位精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程]