How to prepare a sentinel-1 SLC product for polarimetric processing using SNAP

s1tbx
#1

Dear all.
Does anyone know that how to prepare a sentinel-1 SLC product for polarimetric processing using SNAP？IS the procedure right：resample》subset》calibrate》speckle filtering》geocoding？

#2

You can refer to this

http://sentinel1.s3.amazonaws.com/docs/S1TBX%20Polarimetry%20Tutorial.pdf