Radiometric correction and calibration of SAR images

摘要: A technique for producing radiometrically calibrated SAR image products is described. The output imagery corrected to represent a measurement of the ground reflectivity or radar cross section. sources calibration errors are discussed and appropriate forms equation as applied SAR-image data reviewed. key result dependence on azimuth reference function used in processing. radiometric correction algorithm use an operational correlator presented. This has characteristic that it fully reversible. Additionally, can be equally detected complex images, allows subtraction estimated noise floor but does not require this procedure.