GPS多普勒观测值测速的精度分析  

Analysis of Single-Point GPS Velocity Determination with Doppler

作　　者：陈远[1] 于兴旺[1] 叶聪云[1] 张明[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：《全球定位系统》2008年第1期31-34,38,共5页Gnss World of China

摘　　要：讨论了利用多普勒观测值进行单点测速的观测方程,分析了其误差来源和各误差源对测速精度的影响。用自编软件计算了静态和动态条件下GPS测速的精度,其中动态测速的参考速度采用Graf Nav Version 7.00软件计算得到。The Equation of single--point velocity determination with Doppler shift is discussed, the error sources and the effect on velocity determination of error sources are analyzed. The static and kinematic data was processed with software made by the author himself, while the kinematic velocity which was reference velocity was calculated by using GrafNav Version 7.00 software. Compared with both results, it indicates the accuracy of GPS velocity determination reaches cm/s level under static or kinematic condition.

关 键 词：单点测速 多普勒观测值 精度分析 

分 类 号：P207[天文地球—测绘科学与技术]