S1a debursting results look strange

My is located in northern Finland.
My post about this issue: S1 TOPS (ESD) Coregistration

I’m trying to understand and if possible to overcome this problem. With these artifacts I can’t continue my research.

Could you tell me:

  1. What are the names of the two products that you have used to generate the interferogram above? I will repeat your processing.
  2. Have you gotten better results using GMTSAR?