Hello, I am working on DInSAR application by using Terrasar-X SSC SM data to monitor the deformation.
However, I cannot get the successful unwrapping result after Snaphu-unwrapping. Here is my steps:
- Interferogram formation using SRTM 1 sec (Auto Download) to subtract topographic phase
- Apply Goldstein filtering
Filter Out Low Coherence Pixels Before Phase Unwrapping
Sometime the result shows like this pattern
(Phase before (left) and after (right) unwrapping)
and sometime shows like this
the result is so weird. Any suggestion on the workflow and what is going on about the result of shaphu unwrapping. Thank you so much!