顾及GPS观测值时间相关性的隧道贯通误差计算  

Tunnel Link-up Error Calculation Allow for GPS Observation Temporal Correlation's Influence

作　　者：周亮[1] 

机构地区：[1]国家知识产权局专利局专利审查协作江苏中心,苏州市竹园路209号215011

出　　处：《测绘地理信息》2013年第6期48-50,共3页Journal of Geomatics

摘　　要：讨论了隧道洞内外贯通误差的计算方法,利用国内外对GPS观测值时间相关性的研究,得到不顾及时间相关性的基线验后精度与实际精度的比例因子,并应用于隧道洞外GPS控制网贯通误差的计算,使该值更为真实、可靠,从而更好的确定后续测量等级与方案。The ways are analysed to calculate tunnel link-up error made by GPS control survey and traverse survey, which finds the ratio between posteriori accuracy calculated by com- mercial software and actual precision of baseline, based on studies about GPS observation temporal correlation inland and abroad. And the ratio in evaluating GPS control survey＇ s influ- ence values is applies to transverse weight of link-up error, which obtains more reasonable computed values, which is bet- ter for draw up subsequent survey scheme and grade.

关 键 词：贯通误差 GPS观测值 时间相关性 精度比例因子 

分 类 号：P228.4[天文地球—大地测量学与测量工程]