Does anyone have any expernience with range spectral filtering on s1tbx and TanDEM-X data? Applying the s1tbx inbuilt Range Filtering (Interferometric \ Filtering \ Spectral Filtering) on an interferometric stack gives me error (see image).
I don’t have the target product initialised before, i.e. there is no such product before the filter application.
I am working on land subsidence using SENTINEL-1 data. My flowchart (using graph builder) for this process is as follows:
Read the two SLC images
2.TOPSAR-split
3.Apply orbit file
4.Back-geocoding
5.Interferogram formation
6.TOPSAR-deburst
7.TOPO-phase removal
8.GoldStein filtering
I have read that it is also important to perform range and azimuth shift spectral filtering for both master and slave image for removing uncorrelated signal contributions. So, I would like to ask, is this step so important to be implemented in the InSAR process.
If yes, which step of the flowchart should we perform range and azimuth filtering in?
Is this step performed right after image co-registration?