InSAR Performance for Large-Scale Deformation Measurement

This article deals with the analysis of InSAR performance for large-scale deformation measurement. The study evaluates use models, especially numerical weather prediction reanalysis, to mitigate disturbances in SAR interferograms. impact such corrections is evaluated by analyzing short-time baseline phase variograms order derive a lower bound interferometric accuracy, at large distances. variance then propagated from single interferograms rates. Finally, using GNSS measurements, predicted error bars are validated on Sentinel-1 data set.