GPS偏心观测及其精度分析  

The GPS observation of decetration and the accuracy analysis

作　　者：曾云[1] 张予杰[2] 高西峰[2] 

机构地区：[1]中国地质大学工程学院,湖北武汉430074 [2]中国石化华北石油局第四物探大队,河南新乡453700

出　　处：《全球定位系统》2002年第6期2-7,共6页Gnss World of China

摘　　要：由于种种条件的限制,在很多情况下GPS天线都无法实现真正的对中,在某些特殊情况下,例如观测站必须与VLBI站或SLR站重合,而又无法在这些站的标志中心安设接收机天线,这就要求进行GPS偏心观测。本文将着重对GPS偏心观测归心元素的测定方法、归心改正数的计算以及归心元素的测定精度进行讨论和分析。In many cases GPS antenna can't align really due to some kinds of limitations, namely GPS antenna center aligns the center of the device to be measured. For example, when observation station must coincide with VLBI or SLR station, GPS antenna can't be installed to the sigh board's center of these stations, and under this special circumstance, decentration of observation must be a-dopted. . In this article, approaches to measure elements of centring, the calculation of correction number for centring and the accuracy of the error of elements of centring are briofty introduced.

关 键 词：GPS 偏心观测 归心元素 归心改正数 测定精度 测定方法 全球定位系统 

分 类 号：P228.4[天文地球—大地测量学与测量工程]