Relative Radiometric Calibration and Radiometric Calibration Site

Relative radiometric calibration is a very important way in improving the quality of picture getting from remote sensing satellite,and calibration by radiometric calibration sites is just an effective method in relative radiometric calibration.By introducing the principle and the process of CCD camera remote sensing satellite image forming,the paper analyzed the principle of relative radiometric calibration,and then described three methods of carrying out relative radiometric calibration.Meanwhile,aiming at On-Board Calibration,the paper also discussed the method of selecting radiometric calibration site,and introduced several radiometric calibration sites which were thought as excellent.