Topographic Phase Removal Error

Microwave Toolbox Problem Reports
22

JIRA ticket SNAP-3651 created to track this issue

23

Can you remove the “Topographic Phase Removal” operator from your processing chain and select “Subtract topographic phase” in the “Interferogram Formation” UI? Give it a try to see if it fixes the problem.

25

Thank you so much mr divething for your solution. finally, i can resolve topographic phase removal error. god bless you!!!:slight_smile:

26

The problem has been fixed and the fix should be available in the next SNAP release. Thank you for pointing out the problem.

27

Hi everyone, I get the same type of error when I use azimuth and range filter (I want to try hamming weighting):

Hamming_Snap2StaMPS_Workflow
Hamming_Snap2StaMPS_Workflow1429×352 55 KB

Error: [NodeId: Interferogram] [slvProductName] is null
org.esa.snap.core.gpf.graph.GraphException: [NodeId: Interferogram] [slvProductName] is null

If I do exactly the same, but without the azimuth and range filters, I have no problems.

I have already tried not to do it as a graph, but step by step, but still the input after applying the azimuth and range filters is not accepted for the interferogram. I think it has something to do with the fact that the bands are renamed like this after applying the filters:
Intensity_IW2_VV_mst_29Aug2023_azifilt_rngfilt_29Aug2023
And I think the interferogram input doesn’t know how to process the bands with the suffix “_azifilt_rngfilt”.

Does anyone know if this is really the problem and how to fix it? Thanks a lot!