The performance of the quadratic kinematic deformation analysis model

Abstract

Kinematic Deformation Analysis (KDA) models are preferred to estimate displacement, velocity andacceleration parameters. The quadratic models are often used in KDA. To estimate the reliability of themodel, Linear Motion Systems (LMS) integrated with GPS were established at four object points locatedproperly in University Campus. Moreover, five continuously operating GPS sites (off-campus) were pre-defined as reference points. The object points were displaced along three different planes: 1st Verticaldirection (Up), 2nd Horizontal plane (Northeast) and 3rd Horizontal plane and vertical direction forintended scenarios as considering the different magnitudes for velocity and acceleration. Each deforma-tion scenario contains four epochs of GPS observations with eight hours of session duration. According tothe obtained results, the displacements estimated by the Bernese v5.2 scientific software are close totheir real values. However, the quadratic KDA model spreads the effects of the displaced points to othernondisplaced points.