On the status quo and development trend of GPS technology for deformation monitoring

Global Positioning System(GPS)is widely used in deformation monitoring due to its 24 hours availability,real-time,high precision,operability under all weather conditions and automation.In this paper,the status quo and features of the applications of traditional geodesy,photogrammetry,special deformation monitoring and GPS technologies in deformation monitoring are summarized firstly.Then the deformation monitoring model,data processing method and limitations of the applications of GPS in deformation monitoring is introduced and analysed.Finally,the development trend of GPS deformation monitoring technology is discussed.