GPS变形监测的似单差算法与粗差识别  

The Similar Single-Difference Algorithm and Outliers Identification for GPS Deformation Monitoring

作　　者：吕伟才[1] 徐绍铨[2] 

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,湖北武汉430079

出　　处：《安徽理工大学学报（自然科学版）》2006年第3期1-6,共6页Journal of Anhui University of Science and Technology:Natural Science

基　　金：国土资源部资助项目([2003]031709);安徽省教育厅自然科学研究计划资助项目(2004kj113)

摘　　要：根据高精度GPS变形监测的特点,建立了单历元解算变形量的似单差模型及其算法。该模型避免了周跳的探测与修复,可适用于动态、静态两种监测模式及同步观测卫星少于4颗的情况。在分析似单差模型的基础上,提出了识别载波相位观测值中小于半周的粗差的方法。利用试验数据对似单差模型的正确性及粗差识别方法的有效性进行了检验。According to the characteristics of the precise GPS deformation monitoring, the similar smgledifference model and its algorithm for solving deformation values at single epoch is built. This model avoids the troublesome problem of cycle slip detecting and repairing, not only applicable to the static and dynamic monitoring modes but also suitable for the case that the synchronous satellites are less than four. On the basis of analyzing the similar single-difference model, the method of identifying the outliers, which is in carrier phase observations and less than half a cycle, is put forward. The correctness of the similar single-difference model and the validity of the method of identifying outliers are verified with the test data.

关 键 词：GPS 变形监测 单历元 似单差算法 粗差识别 

分 类 号：P228.4[天文地球—大地测量学与测量工程]