Good evening.
Why the deburst with SNAP is required only in the SLC products but is not required in products GRD?
I read this page,
https://sentinel.esa.int/web/sentinel/level-1-post-processing-algorithms
For IW GRD product the deburst is done before, is it right?
Thanks in advance.
S1 IW is taken in three sub-swaths which consist of several bursts:
https://sentinel.esa.int/web/sentinel/user-guides/sentinel-1-sar/acquisition-modes/interferometric-wide-swath
These bursts need to be merged together by the Deburst operator.
For GRD data this has already be done.
Dear Andreas,
I have read in this document that for SLC the number of burst is 9 for each sub-swath so the total number of bursts is 9x3=27
But, for example, when I open S1B_IW_SLC__1SDV__…6A78.zip
there are only 18 images (including virtual intensity bands), why?
Thanks again.
you’re mixing two things up:
What you see after opening are three sub-swaths in two polarizations. The intensity images are a logical expression derived from imaginary and real parts of the scattering matrix (i+q).
Each of these sub-swaths consists of nine bursts:
These bursts need to be merged with the deburst operator. If you directly download the GRD data this is already done.
