The Research On Data Processing And Analysis Method Of Deformation Monitoring

In this article the summary of deformation monitoring is described, and the result and shortage of GPS technology in the application of deformation monitoring is introduced. Then the optimization of GPS net is discussed, and many methods are also proposed to enhance the precision and reliability of GPS net. According to the stability of the datum point and whether there are datum points in real project, different methods are chosen to process the GPS base network, such as adjustment of free network, rank defect network adjustment and imitative stable adjustment of free network. In the process of distortion analysis, the data of leveling monitoring is selected to carry on the experiments. Firstly the data is checked to make sure that there are not outliers. Secondly many methods are chosen to interpolate the data, and periodic data can be got from the Non- periodic data. Finally the polynomial regression analysis and the gray system analysis are used to fit the data and make prediction. With the high precision, not only the changing size of the next period is predicted and higher precision is achieved, but also the result verifies that the methods are correct and reliable.