The Radar Calibration function is used to calibrate RADARSAT-2 imagery in a mosaic dataset or as a raster product. Calibration is performed on radar imagery so that the pixel values are a true representation of the radar backscatter.
Radar calibration is not available for RADARSAT-2 SSG and SPG products.
The radar calibration depends on the following lookup table files that are normally shipped with the product:
The input raster.
The type of calibration to be performed.
Luscombe, Anthony, Radiometric calibration information from RADARSAT-1 Amazon measurements, Proceedings of CEOS SAR Workshop 2001, CEOS Working Group on Calibration and Validation, SAR Subgroup. (2001): 68–71.
Calculation of beta naught and sigma naught for TerraSAR-X data, Airbus https://www.intelligence-airbusds.com/files/pmedia/public/r465_9_tsxx-airbusds-tn-0049-radiometric_calculations_d1.pdf