how to generate DEM once interferogram is generated ?
For generating DEM after Interferogram you need to follow the below steps…
- Topographic phase removal
- phase filtering
- Multilooking (ML)
- phase unwrapping using snaphu (snaphu is a platform dependent phase unwrapping software, it works in linux os)
- phase to height conversion
Better to follow ESA DEM generation procedure of address given below
Topographic phase removal is not required for DEM generation. It is required for displacement generation.