Error- input should be single look complex SLC product

[ABraun]

SAR interferometry requires the complex information of the backscattered radar signal.
GRDH products no longer contain this complex information. You will have to download the SLC products.

Please have a look at the interferometry tutorial first:

S1TBX%20TOPSAR%20Interferometry%20with%20Sentinel-1%20Tutorial_v2.pdf

About the naming conventions of SAR products, please see also here:

GTC (Geocoded terrain corrected) data

it means that its already ground-range corrected. Unlike SLC data the pixels’ areas are already of same size. Astrium has made nice graphics for this case. They refer to TerraSAR-X but the principle is the same for most SAR satellites: Slant Range Complex (SLC/SSC/L.1.1) [image] Data is neither multi-looked nor projected Ground Range Detected (GRD/MGD/L1.5) [image] Data is multi-looked but not projected Geocoded Ellipsoid Corrected (GEC/L2.0) [image] Data is projected but topographic d…