Decomposing and mapping different scales of land subsidence over Shanghai with X- and C-Band SAR data stacks
Land subsidence can be observed with time-series of Interferometric Synthetic Aperture Radar (InSAR) data.However, existing approaches only reveal subsidence signals that are multi-scale mixed, which is not conducive to the systematic analysis of subsidence of different mechanisms.A deformation signal decomposition (DSD) method based on spectral an