Hi,
When I try with sample RADARSAT 2 data provided with tutorial from the link: http://sentinel1.s3.amazonaws.com/docs/S1TBX%20Stripmap%20Interferometry%20with%20Radarsat-2%20Tutorial.pdf1
.
noticed that SRTM 3sec data is downloading automatically for sample data set when running graph. and processing successfully without “Negative pixel spacing in snaphu”.
I am working with Radarsat 2 - MF22 - SLC - HH polarized data .
The main error I am facing is after exporting to SNAPHU, in snaphu.config file - the pixel spacing is negative value and this resulting error while executing snaphu command in linux is
"27 parameters input from file snaphu.conf (84 lines total)
pixel spacings dr and da must be positive (meters)"
I have the problem statement with the topic here:
I am not sure that error is occurring with auto download DEM and executing the step TopoPhaseRemoval…
I tried with applying aster 30m DEM as external DEM as well. But no change in result.