I downloaded 66 S1 GRDH scenes and want to mosaic those.
Before mosaicing I did
-> apply orbit file -> S-1 Remove GRD Border Noise ->
Radiometric calibration -> S-1 Slice assembly -> Radiometric
Terrain Flattening -> Geometric Terrain Correction -> SAR mosaic
Now one can see in the screenshot without weighted average of overlap (left) and with weighted average of overlap (right). I do not want to normalize because this messes up values in the final large mosaic.
For me as a new SAR user, another interesting new working step. But is it correct to deburst GRD products? As far as I understand, this working step has been already conducted in provided scenes:
‘For GRD products, the bursts are concatenated and sub-swaths are
merged to form one image. Bursts overlap minimally in azimuth and
sub-swaths overlap minimally in range. Bursts for all beams have been
resampled to a common grid during azimuth post-processing.’#
‘The input to the operator is the Sentinel-1 TOPSAR IW or EW SLC