Below is a description of what I did to get results for a case, and I got the height product as the attachment

. My values of height are generally below to zero. Where are mistakes about my process? How can I get the result as DSM, digital surface model?1/ S-1 Level-1 SLC products: Split and Apply_Orbit_File.

2/ Create stack using Backgeocoding.

3/ Apply Interferogram formation.

4/ Deburst the result.

5/ Apply TopoPhaseRemoval.

6/ Snaphu Export.

7/ Conduct snaphu to get unwrapped phase.

8/ Snaphu Input with the result of 5 and result of 7

9/ Apply topographic correction.

10/ Apply phase to height.