Are you process whole scene (3 IW)? Unfortunately SNAP 4.0 (as also 3.0) have some problems with RAM memory optimization. There is no way to process whole scene of S1 images unless you have 32GB RAM memory. It is strange that older version (Sentinel-1 Toolbox v.1.1.1) haven’t this problem. So there is some idea to use Sentinel-1 Toolbox v.1.1.1 instead of SNAP 4.0.
Thank you very much. I was able to run it on my computer, but it took ages.
I was wondering if you could help me with some doubts I have regarding co-registration of S1 IW images:
1: What are the best parameters to use regarding the co-registration method and the re-sampling method.
2: After co-registration how can I measure the accuracy of the process? Is there a file I can read where I get a RMS or something.
3. As far as I understand. A co-registration process creates a stack with both images (master and slave), can I have the coregistered and resampled salve image on its own and not part of the stack? This is to do coherence analysis between different pair of images. lets say a slave+slave. The coherence estimation tools seems to only work with stack images. Is there a way to stack pair of images together?
I am following the ESA tutorial for interferometry, but I need to do more coherence analysis that Interferometric Analysis. Do you know how I can use other software, for example R, to make some statistical analysis of the data?
Sorry if my post is too long. I have some many question, because this is the fist time I deal with RADAR data.
Thank you for the interesting document, however. it still does not answer my question on which parameters should I use with the SNAP software and where does the SNAP software stores the accuracy results of the co-registration process. This document uses GAMMA and not SNAP.