GPS变形监测的SSDM方法的理论与实践

The theory and practice of the SSDM methodology for GPS deformation monitoring

全球定位技术已广泛应用于监测各种建构物的变形,本文根据高精度GPS变形监测的特点,从六个方面综合性地介绍了SSDM(似单差方法)的理论与实践。第一部分介绍了SSDM方法产生的背景,第二部分给出了其基本数学模型。第三部分分析了SSDM方法的误差来源和控制措施,第四部分介绍了采用SSDM方法进行变形监测的监测方案,第五部分简单介绍了采用SSDM方法开发的软件。最后一部分,对SSDM方法的一些重要结论进行总结。本文中,某些论据以参考文献形式给出。

Global Positioning System technique is widely used to monitor all kinds of buildings and constructions′deformations.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 following six aspects.The backgrounds of the SSDM are introduced in the first part,the essential mathematic model is given in second parts.The error sources and control measurement are analyzed in the third,the monitoring schemes adopting the SSDM Methodology are introduced in the fourth part.The software is simply introduced in the fifth part and the important conclusions are summarized in the last part.In this paper,some arguments are given in mode of reference literatures.