3.2.1 Calibration

The application SarRadiometricCalibration can deal with the calibration of data from four radar sensors: RadarSat2, Sentinel1, COSMO-SkyMed and TerraSAR-X.

Examples :

If SARimg.tif is a TerraSAR-X or a COSMO-SkyMed image :

otbcli_SarRadiometricCalibration -in SARimg.tif  
                                 -out SARimg-calibrated.tif

If SARimg.tif is a RadarSat2 or a Sentinel1 image, it ’s possible to specify the look-up table (automatically found in the metadata provided with such image) :

otbcli_SarRadiometricCalibration -in SARimg.tif  
                                 -lut gamma  
                         -out SARimg-calibrated.tif

For TerraSAR-X (and soon for RadarSat2 and Sentinel1), it is also possible to use a noise LUT to derive calibrated noise profiles :

otbcli_SarRadiometricCalibration -in SARimg.tif  
                                 -lut gamma -noise 1  
                                 -out SARimg-calibrated.tif