ALOS 2 InSAR

[tanzim1992]

I have ALOS PALSAR 2 images of processing Level 1.1 in CEOS format (i.e. Range and single look azimuth compressed data is represented by complex I and Q channels to preserve the magnitude and phase information.Range coordinate is in slant range.). They are StripMap 2 images of width 50km and resolution 3m.

The images are of ASO Volcano in Japan and I wish do do InSAR on them. However, both the images are missing a significant portion in the middle. I do not know if its a coincidence but the same portion is missing in both the images!!! The images are a year apart (2016 05 02 vs 2017 07 10)
The picture given below shows that the actual image and JAXA quicklook version .

Is the middle portion actually missing or is there anything that I can do???

[tanzim1992]

There was NO problem with the image. The Solution is to open the image using the “import” option and then selecting “SAR Sensors” and finally “ALOS 2 CEOS”

See the image in the given post-

Interferometric processing workflow with ALOS-2 L1.1 SLC data

Did you upgrade to SNAP v.7.0 , if yes, that’s mean SNSP 7.0 doesn’t support ALOS2, but these are the ALOS, could be imported in SNAP, [image] Could be done alternately, because the G. phase F. is only for visual enhancement, however step 7. should be done to remove the topo. phase, Yes, it could be STEP 8. Multilooking then the STEP 9. Unwrapping