How to prepare Sentinel-1 images stack for PSI/SBAS in SNAP

Dear Katherine,

I keep getting the same error in both Windows and Linux and I think my data structure is somehow not correct:
What I did:

  1. create S1 stack with lat/lon bands (later placed in the geo folder)
  2. create interferogram, removed topographic phase, and added an elevation band
  3. StaMPS export creating dem, diff0, geo, rslc

dem folder

diff0 folder

geo folder (here I am not sure if i named the lat/lon files correctly)

rslc folder

I then open the linux terminal (or cygwin respectively) and run
mt_prep_gamma 20150728 data 0.4 2 2 50 200

This works fine until the selection of persistent scatterers (mt_extract_cands)


It is stated that data/rslc/20150728.rslc cannot be opened but it is located in that directory and was also correctly used in the previous step (mt_prep_gamma).

Am I missing something? Did i run the script from the correct location or should the file structure somehow different? I also looked in the code of mt_extract_cands but couldn’t find why the file cannot be opened.

The same happens for mt_prep_gamma_snap which you provided in your post.

Any hint would be helpful.