GPS天线相位模型变化对高精度GPS测量解算的影响研究  

Influence of GPS antenna phase center model change on GPS data processing

作　　者：丁晓光[1,2] 张勤[1] 黄观文[1] 管建安[1] 

机构地区：[1]长安大学地质工程与测绘工程学院,西安710054 [2]陕西省地震局,西安710068

出　　处：《测绘科学》2010年第3期18-20,共3页Science of Surveying and Mapping

基　　金：国土资源地质大调查项目(1212010440410)

摘　　要：GPS天线存在相位中心偏差,在高精度测量中必须对其进行补偿改正。本文针对GPS天线的两种改正模型:相对改正模型和绝对改正模型,在讨论了它们所具有的相同改正办法的基础上,分析了它们在测定方法上存在区别,最后通过一个算例分别研究了这两种模型对GPS测量解算精度的影响,得出了一些有意义的结论。GPS antenna exists phase center deviation, it must be corrected in high-precision GPS survey. There are two models used in antenna phase center offset： relative phase center model and absolute phase center model. Based on the same geometrical models, the paper analyzes their difference on metrical and corrective methods and a practical example was given to research the influence of model change on GPS data processing precision, some helpfitl conclusions were given in the end.

关 键 词：GPS 天线相位中心 相对模型 绝对模型 高精度 

分 类 号：P228[天文地球—大地测量学与测量工程]