I’m doing some processing using Sentinel 1A SLC IW data,r I’m using 1pairs of S1 data:
12/2 2018 and24/2 2018
The processing chain I followed : Coregistration, Deburst, Interferogram, Filter (Goldstein), Unwrapping (TOPO) with Snaphu, Phase to elevation, Terrain Correction
1-When the conversion is done from phase to elevation. The results are very dark as in the picture. What is the problem.
2-I have a high accuracy DEM for the study area in a step I can use to increase accuracy.