Assessing the Impact of a-priori Knowledge on Deformation Estimates in Persistent Scatterers Interferometry

Persistent Scatterers Interferometry (PSI) is a well-known space geodetic technique for measuring surface deformation. Deformation estimates obtain under blind conditions (i.e. processed without the usage of a-priori information) can be questionable and controversial. The problem manifests itself when different users process the same radar data...

The fusion of SAR tomography and Stereo-SAR for 3D absolute scatterer positioning

For decades, spaceborne Synthetic Aperture Radar (SAR) interferometry has evolved into a widely used geodetic method for three-dimensional mapping and analysing the geophysical processes of the surface of the earth. Nevertheless, effects such as atmospheric disturbances, temporal and geometric decorrelation are considered as the main degrading...

Improving Persistent Scatterer Interferometry Results for Deformation Monitoring: Case study on the Gardanne mining site

The persistent scatterer interferometry (PSI) is a relatively new technique in radar interferometry which has matured, within a last decade, to a practical technique for measuring the deformation of the Earth’s surface. PSI overcomes the main limitations of conventional InSAR methods by identifying radar targets, called persistent scatterers (PS...