Theory and Practice of the SSDM for GPS Deformation Monitoring

作     者：Lü Wei-cai XU Shao-quan 

作者机构：Department of Resource and Environment Engineering Anhui University of Science and Technology Huainan Anhui 232001 China School of Geodesy and Geomatics Wuhan University Wuhan Hubei 430079 China 

出 版 物：《Journal of China University of Mining and Technology》 (中国矿业大学学报（英文版）)

年 卷 期：2006年第16卷第2期

页      面：156-161页

核心收录：

学科分类：081802[工学-地球探测与信息技术] 08[工学] 081105[工学-导航、制导与控制] 0818[工学-地质资源与地质工程] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

基　　金：Projects 2003031709 supported by National Land and Resource Bureau Science and Technology Foundation of China and 2004KJ113 by Natural ScienceResearch Project of Education Bureau of Anhui Province 

主　　题：GPS Deformation monitoring Single epoch SSDM Methodology Summarization 

摘      要：Global Positioning System technique is widely used to monitor the deformations of all kinds of buildings and constructions. According to the characteristics of the high precise GPS deformation monitoring, the theory and practice of the SSDM （Similar Single-Difference Methodology） for GPS deformation monitoring are introduced synthetically from the background, the essential mathematic model,the error sources and control measures, the monitoring schemes and the software development. Some arguments are also given in the form of reference literatures. Based on the first period observation results of the GPS monitor network, SSDM solves the monitoring points＇ deformation values at a single epoch from carder phases directly, without needing to solve baseline vectors and network adjustment. The SSDM avoids the troublesome problem of detecting and repairing cycle slips, and can be used in static and dynamic deformation monitoring. In the SSDM, the unknown parameters have no relation to the numbers of satellites. If the number of synchronous satellites between stations is not less than two, the monitoring point＇s deformation information can be solved easily.