Available with Image Analyst license.
Overview
Corrects the input synthetic aperture radar (SAR) data for radiometric distortions due to topography.
Notes
The input radar data must first be calibrated to beta nought. Use the Apply Radiometric Calibration tool to calibrate radar data to beta nought.
If the input DEM does not span the entire SAR dataset, the tool will output NoData values for the pixels outside of the DEM extent for gamma nought, sigma nought, scattering area, and geometric distortion outputs. For the geometric distortion mask output, the tool will output undetermined values for pixels outside of the DEM extent.
The input DEM must be in the WGS 1984 (EPSG:4326) geographic coordinate system.
Parameters
Parameter  Description 

Raster  The input radar data. This raster must first be radiometrically calibrated to beta nought. 
DEM  The input DEM. The DEM is used to estimate the local illuminated area. 
Geoid  Specifies whether the vertical reference system of the input DEM will be transformed to ellipsoidal height. Most elevation datasets are referenced to sea level orthometric height, so a correction is required in these cases to convert to ellipsoidal height.

Calibration Type  Specifies whether the output will be terrain flattened using Sigma nought or Gamma nought.
