I need to process CSG quad-pol data, do calibration, terrain correction and reprojection. For that, I think I need to bring together the four polarimetric channels into 1 product in SNAP. Does anybody have experience how that works?
My goal is to generate the coherency matrix elements
I tried to do calibration, terrain correction and reprojection with the individual channels:
but it does not work at all (the outcome is a grey intensity image).
Ellipsoid correction instead of terrain correction works, but SNAP loses the complex numbers on the way and produces only the intensity.