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Hi gdervin , To generate a DEM from SAR, it's best to have two images that are acquired very close together in time, but from slightly different places in space. You could try generating DEMs from ALOS PALSAR L1.1 products, but there are a number of issues that may be problematic: - ALOS had a repea...

Hello bendibhalim , The InSAR processing workflow is described in the readme file provided in the product package. It also includes a link to the appropriate Product Guide ( Sentinel-1 InSAR using GAMMA or Sentinel-1 Burst InSAR using ISCE2 ) for the product you are using. Let us know if you have ad...

Hello kestkat , RTC products are not suitable for generating DEMs, as they do not include phase information. The workflow for generating a DEM from SAR imagery compares the phase measurements from two acquisitions. You would need to start with two complex images (such as the ALOS PALSAR L1.1 product...

Hello @slozanot,
This question has been addressed in another thread.

Hi slozanot , The DEM file included in the ALOS PALSAR RTC product package is a copy of the DEM used to perform the radiometric terrain correction. The values are in meters, but the values will differ from the original DEM used, as an ellipsoid correction is applied before it can be used for RTC. Th...

These signatures are indicative of Radio Frequency Interference (RFI). This is a common problem in SAR acquisitions, and often occurs near airports or other installations that emit strong radio/radar signals. The acquisition data itself is impacted; it's not an issue introduced during RTC. Unfortuna...