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《Acta Photonica Sinica》 2018-10
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Geometric Parameters Monitoring Technology for Space Optical Camera

WANG Hui;LIU Wei;YU Jian-dong;WANG Ke-yan;LI Yun-song;LIU Dan;State Key Laboratory of Integrated Service Network,Xidian University;State Key Laboratory of Geo-Information Engineering,Xi'an Research Institute of Surveying and Mapping;Xi'an Institute of Optics and Precision Mechanics of CAS;  
Aiming at the problem that the state-of-the-art geometric calibration methods have a long update period and low efficiency,a real-time calibration method that applies the optical auto-collimation principle to on-orbit monitoring is proposed.By installing collimated light sources,area-array CCDs,prisms,and other devices inside the satellite load system,changes in the camera parameters are converted into changes in the spot images.By extracting and processing the spot images,the variation of the camera parameters can be solved to achieve a fast and efficient on-orbit monitoring.The feasibility of the proposed method is verified by building an experimental platform,and the monitoring accuracy of parameters in the pitch and roll directionsis are less than 1″,and the measurement error is better than 0.1″.
【Fund】: 国家自然科学基金(Nos.61501346 91538101);; 高等学校学科创新引智基地(No.B08038)资助~~
【CateGory Index】: V445.8
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