I wanted to produce interferometric image for coastal area concerning large period of time 2015-1018. I expected to have reasonable results since landslides activation has been reported in media.
The SAR data was selected to be from almost same dates and same sensor.
The stack used is
For processing I used the following graph.
the shown excerpt is before unwrapping
Unfortunately after unwrapping the result looks quite unacceptable even at the landslide areas the coherence is above 0.3
Could you please provide your comments. Any good explanation is also an asset.