DTAR and PTAR in a SAR image

I am putting in this forum to get some clarity over how to calculate DTAR (Distributed Target Ambiguity Ratio) and PTAR (Point target Ambiguity ratio) in a SAR image.I was able to get the theory from the papers but no one suggests how to calculate it from a SAR image i.e. from an Intensity image. For example, if I have a Sentinel-1 image and I wish to calculate the parameters. How to calculate them ? Kindly guide.

It’s a bit of a late reply but I will still try to help. For practical implementation, you’ll likely need to work with the specific pixel values and apply the formulae mentioned in the literature. With Sentinel-1 data, you can use tools like SNAP, which might allow you to create a custom script to process the intensity image.