I created a double-difference interferogram of both an ascending and descending image to have an estimation about the azimuth displacement. I wanted to unwrap both interferograms by using Snaphu Export, but I get the error message ‘wrapped phase band required’. I have a DDI-band (which I assume is the wrapped band?) and a coherence band for both of my interferograms. What can I do? Or is unwrapping of DDI not yet possible with Snap?