Data Processing Model of GPS Dam Deformation Monitoring Network

In view of the particularity of the global positioning system(GPS) dam deformation monitoring network,a data processing model based on the station orthogonal coordinate system for three-dimension GPS dam deformation monitoring network is put forward.The paper also presents a mathematical model based on the clustering analysis method in fuzzy mathematics to test the relative stability of quasi-stable points(or datum points).The adjustment method during the course of data processing is quasi-stable adjustment.A software system of three-dimension GPS dam deformation monitoring network is designed and developed with the help of Visual Basic Language.With three periods' observation data from the GPS deformation monitoring network of a dam,an adjustment calculation is conducted by the software.The calculation result shows that the mathematical models can be more suitable for the data processing in GPS dam deformation monitoring network.