Create DEM Sentinel 1 IW SLC

I tried to create a DEM in SNAP, with the following steps:

  1. S-1 TOPS Corregistration
  2. Interfarogram Generation
  3. Deburst
  4. Goldstein Phase Filtering
  5. Interferometric Products Phase
  6. Range-doppler creation

The result gives negative values
Because it gives negative results?
What can I do to give me normal results (positivo)?

Could you help me with this problem?

Thank you very much

Did you unwrap your interferogram?
Afterwards you need to apply phase to elevation.

1 Like