-Satellite orbital path must be the same for both satellites (Yes in most cases)
-Orbit direction must be the same (both ascending or descending orbits) (Yes)
No, you can’t generate an interferogram between ascending and descending acquisitions. (It is inapplicable)
In the StaMPS export add Debrusted stack first then Debrusted Interferogram (According to SNAP V.5 it is not possible to implement topo pahse removal before DEBURST)
Have a nice day, everyone.
I reached the step StaMPS.
Further I can not understand how move. Received in SNAP folders (/ diff0, / geo, / dem, / rslc). They must be placed in the catalog StaMPS or not.
Where to run the mt_prep_gam file and how to connect the matlab?
Excuse for troubling. Give please advice.
Hello @Alex_P
You have to run make && make install from the src folder. Which platform are you using ? Can you show us a screenshot of the Terminal, maybe then i could help you a little bit more.
However, for both ERS and ENVISAT cases, I obtain PS’s in vegetated or forest áreas…
What may be the cause of this error???
I don’t know if you find the reason of your problem. Watching your maps, it seems that you are using two different subset. So, have you check the lat and lon bands are correct? Also, have you check that all your images are visible before StaMPS export?
If all is ok, the problem is in StaMPS elaboration. How many pixel are selected during step2 and step3?
I also tried cygwin on Windows an thought I got it compiled but as soon as it comes up to Matlab, syntax issues and other dependencies forced me to quit this. I think the only reliable way is to have a Linux PC somewhere.
Anyone can help me about how to get .lat and .lon files. I masked the master file and export pixels but the .txt file is almost 6GB. .lat and .long files contain just coordinates or Pixel-X Pixel-Y Coordinates? Could you share one of you inside the .lat and .lon files?
Thank
Fikret
Thanks @ABraun. I got it and obtained .lat and .lon files easy way. But I have some error still. I am using cygwin64 and tried both mt_prep_gamma and mt_prep_gamma_snap version but I got same errors. PATCH files are created but progressing didnt started. It says mt_extract_cands: Command not found but it is in the bin files. What should I do?
@Fikretjfm@ABraun if you use csh shell in Cygwin you will be able to run the scripts on windows (just type ‘csh’ in Cygiwin command line to change from bash (used by default) to csh).
Additionally, I added a few lines to the modified mt_prep_gamma script by @FeiLiu to avoid problems when matlab tries to access the folder where the data is (Cygwin executes unix scripts “virtually” and the absolute path that uses is different from the real one in windows, which is used by Matlab). The script works if you run StaMPS from your C: drive, otherwise you will have to modify drive name to run them correctly. Change_log.txt explains how to modify it.
After running this script you will only need to run matlab and change ‘insar_processor’ to ‘gamma’ and hopefully all will run flawlessly.