Create DEM Sentinel 1 IW SLC

[SergioA]

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

[ABraun]

@SergioA

S-1 TOPS Corregistration
Interfarogram Generation
Deburst
Goldstein Phase Filtering
Interferometric Products Phase
Range-doppler creation

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