摘要
讨论了模拟ＧＰＳ精密测量系统误差的一些主要问题．文中用了两个实例，一个是南美洲某油田地面沉陷监测网，另一个是美国超级超导对撞机ＧＰＳ地面控制网．
GPS relative positioning is contaminated by several sources of errors. Some of them have systematic effects on the measured baselines. These effects,however,may change from one survey epoch to another due to changes in the error characteristics and /or the sky distribution of the observed satellites. To obtain accurate and reliable results, they muSt be properly modelled and eliminated in processing of the measurements of high precision. In the design of survey schemes a consideration of these facts should also be given. This peper discusses some of these aspects with two examples:a GPS network for monitoring ground subsidenceof an oil field, and SSC GPS control network.
出处
《武汉测绘科技大学学报》
CSCD
1994年第4期310-314,共5页
Geomatics and Information Science of Wuhan University
关键词
GPS
测量系统
误差
误差模拟
GPS
systematic effects
error modelling
precise survey
