Study on Ground Deformation Monitoring Simulation Based on Combined
CRInSAR and PSInSAR Calculation
1 Key Laboratory of Special Environment Road Engineering of Hunan Province, Changsha University of Science & Technology,
960 South-Wanjiali Road,Changsha 410014,China
2 School of Traffic and Transportation Engineering, Changsha University of Science & Technology,
960 South-Wanjiali Road,Changsha 410014,China
3 School of Geosciences and Info-Physics, Central South University, 932 South-Lushan Road, Changsha 410083,China
Abstract：The paper presents an algorithm for the combined calculation of the corner reflector interferometric synthetic aperture radar (CRInSAR) and the permanent scatters interferometric synthetic aperture radar (PSInSAR) techniques. The algorithm uses the subsidence rates and elevation corrections calculated on the CR points as initial data for the PS baseline network. It then estimates the total optimum solutions of linear deformation rates and elevation corrections through the parametric adjustment method in the PS network. Experiments with simulated data and real data are carried out to estimate the feasibility of the algorithm. The simulation results show that the accuracy of linear deformation rates is ±0.37 mm/a, while that of elevation correction is ±0.5 m. The PS deformation rates inversed through the real data experiment show good consistency with that of leveling deformation monitoring. It can be inferred that the method presented is feasible in field regional deformation monitoring.
XING Xuemin,HE Yueguang,WEN Debao et al. Study on Ground Deformation Monitoring Simulation Based on Combined
CRInSAR and PSInSAR Calculation[J]. jgg, 2015, 35(3): 464-468.
