似单差法在三峡库区滑坡监测中的应用与分析  

The similar single-difference methodology application and analysis for slop objects deformation monitoring in three gorge area

作　　者：余学祥[1] 徐绍铨[2] 吕伟才[3] 

机构地区：[1]安徽理工大学资源与环境工程系,安徽淮南232001 [2]武汉大学测绘学院,湖北汉430079 [3]1安徽理工大学资源与环境工程系,安徽淮南232001

出　　处：《全球定位系统》2004年第5期25-29,共5页Gnss World of China

基　　金：国土资源部资助项目 (国地防灾 [2 0 0 3]0 3170 9);安徽省教育厅自然科学研究计划项目 (2 0 0 4KJ113)

摘　　要：根据高精度GPS变形监测的特点 ,以监测网的首期观测成果为基础 ,建立了单历元解算监测点变形量的似单差模型 ,讨论了接收机天线相位中心偏差的改正方法。该模型避免了周跳的探测与修复 ,可适用于动态和静态两种监测模式、单频接收机。利用三峡库区的实测数据对模型的正确性进行了检验。According to the characteristics of the high precise GPS deformation monitoring, basing on the first period observation results of the monitoring network,the similar single-difference model of solviog GPS monitor point deformation information at single epoch is built,and the receivers’antenna phase center offsets are discussed.This model avoids the troublesome problem of cycle slip detecting and repairing,and is not only applicabme to the static and dynamic monitoring modes, but also suitable for the surroundings that the single receivers.The correctness of the similar single-difference model is verified with the practical data in Three Gorge Area.

关 键 词：似单差法 滑坡监测 天线相位中心 单历元 周跳 解算 似单差模型 接收机 实测数据 单频 

分 类 号：TN248[电子电信—物理电子学] P228.4[天文地球—大地测量学与测量工程]