Hi.
I’m using two consecutive Alos/Palsar L1.1 dual-pol images but I have the following problem.
I apply for each one in SNAP: Calibrate -> Terrain Correction -> Subset , after I run SAR Mosaic.
Then I want to run Polarimetric Matrix generation but I get this:
Is it possible to do polarimetric processing with a SAR mosaic in SNAP or I must do it for each image separately???
Yes, during calibration I selected “Save a complex output” and did the same in Range Doppler Terrain correction selecting “Output Complex Data”.
I’ve saved the results of all processes as Beam-Dimap and tried with different workflows as you said in 3, but I always get the same problem when I want to run Polarimetric Matrix generation.
I am not sure but I have always thought that the polarimetric matrix should be generated from the SLC directly, without terrain correction or calibration or so on…
I always thought the same as you, @mdelgado.
In the PolSARpro course with Eric Pottier in January we also terrain corrected the complex data early for a better visual interpretation of the later polarimetric measures.
If he thinks that is okay, am willing to believe it