Actually, I will analysis slow-move landslide with PSInSAR method.
I found some interference information of settlements in mountain areas by DInSAR with sentinel images. So, I want to check the move motion by interferograms in different time. I'm not sure will it work or not, because we couldn't get good interferogram in mountain areas with other C-band data. In addition to that, I also tried to process the co-seismic surface deformation and land subsidence by DInSAR method.
Could you tell me how to check the topographic phase removed correctly or not? If there exist some problem in this step, how to solve it?
I have followed the steps in "Sentinel-1 TOPSAR Interferometry" tutorial from ESA website. And I have tried many times with different SAR images and parameters, but I couldn't find the key to solve this error ......
Thank you very much!