Coregistration issue with the slave image

s1tbx Interferometry
#1

Hi,

I have done a lot of tests to make the coregistration of these two images :

  • S1A_IW_SLC_1SD_20190312T012947_20190312T013014_026298_02F077_1B73.zip
  • S1A_IW_SLC_1SD_20190324T012947_20190324T013014_026473_02F6EC_539F.zip
    Radar -> Coregistration -> S1-TOPS Coregistration -> S1 TOPS Coregistration (with ESD) with different DEMs and resampling methods, always the same result : no slave image. That is mean the algo runs without error but when I open the slave image, I have an image with 0 everywhere.

Then, I take two other images :

  • S1A_IW_SLC_1SD_20180908T012141_20180908T012208_023600_029235_D013.zip
  • S1A_IW_SLC_1SD_20180920T012141_20180920T012208_023775_0297D5_59A1.zip
    Still the same result…

Thanks in advance.

Do you have an idea?

#2

This issue is discussed quite a lot , firstly be sure of your SNAP is uptodate , second thing you mentioned ,

Did you also tried up, SRTM 1sec?

In this case, please take a look at this post, explains, how to select the correspondent slice and frame,

Source of the post

Please take a look at the processing steps in the following post, I explained in details,

Source of the post