Design and Analysis of Radiometric Calibration Mission in-orbit for Environment and Disasters Monitoring Satellite

With the rapid improvement of optical payload radiometric calibration accuracy, it is necessary to carry out in-orbit radiometric calibration to improve the calibration accuracy and image quality. The design and analysis of in-orbit radiometric calibration with moon, sun and side-slither is presented. The side-slither radiometric calibration mission based on along track scanning is proposed to obtain 60 angles polarization Stokes parameters with the calibration target of deep convective cloud. The satellite attitude stability for in-orbit radiometric calibration is analyzed and meets the requirements of optical image quality.