About processing radiometric calibration IW SLC in SNAP

[ABraun]

if you calculate it in db it roughly ranges between -40 and +10.

Please see also here:

Pixel values ruin with Calibration and/or Spekle filter

I agree with @junlu - the values are not ruined, just transformed. You can check if everything is fine by logarithmising (right-click > linear to db) the values. If they result in a range between -35 and+5 db everything is fine. Sigma0 image: [image] Sigma0 histogram: [image] Sigma0db image: [image]0db Sigma0db histogram: [image]