Error in DEM assisted coregistration with XCorr

yhkeen · June 20, 2018, 7:08am

Dear all,

I have a problem with DEM assisted coregistration with XCorr.

I click ‘Run’ button and there is an error message "Java.lang.NullPonterException’.

Thanks in advance.

Regards,

kubrickfr · October 29, 2018, 5:28pm

Hello.

I have the same issue with two Sentinel 1 SLC products. I’ve loaded them, applied the orbit files, and then attempted DEM assisted corregistration with cross-correlation but it fails with this Null Pointer Exception.
In my case (many small islands) TOPS coregistration doesn’t seem to do a great job, which is why I’m exploring other options (mentioned in https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7390052 ).

Regards,
F

mengdahl · October 29, 2018, 9:14pm

You should follow the tutorial for S-1 InSAR and use backgeocoding. Images with a lot of water in them are tricky.

kubrickfr · October 30, 2018, 4:36pm

Any suggestion to solve this tricky problem?