While in the process of orthorectifying a SLC RADARSAT 2 image that has had speckle suppression applied, the OrthoRadar application quits when selecting this image after starting OrthoRadar.
The viewer window starts, and then the SAR Geocode/Orthorectify Model Properites window starts but an error message window pops up. The message is: Invalid range sampling factor '200'. Value must be <= the SAR number of range samples '0'. Click OK and another Error popup window opens saying: DLL was unable to create model info. Click OK, the SAR Geocode/Orthorectify window disappeared, although the viewer window stayed.
When applying the speckle suppression on the RADARSAT-2 image, the SAR Node is removed from the output image. The SAR Node is required for sensor specific geometric modeling, which is used by OrthoRadar.
Transfer the SAR Node from your imported RADARSAT-2 image to the despeckled image using the SAR Metadata Editor.
The despeckled image can now be used with the OrthoRadar tool.