空间科学学报2013，Vol.33Issue(3)：313-319,7.
火星探测接近段的光学自主导航研究
Research on Optical Autonomous Navigation for Approach Phase of Mars Exploration
摘要
Abstract
The optical autonomous navigation has recently become one of the key topics in interplanetary space missions.According to the current research literature,most people only focused on the application of optical autonomous navigation for the cruise phase or the approach phase of asteroids exploration.The research for the approach phase of planets is rare.Based on the upcoming Mars exploration program of China,with the research of dynamics model,observation model and filtering algorithm,the process of the optical autonomous navigation during the Mars approach phase is studied.Through the observability analysis of the navigation system,the feasibility of using Mars optical information only for autonomous navigation is proved.Simulation result showed that the total time of the optical autonomous navigation for approach phase is about 40 hours.In the last 5 hours,the filtering results are becoming stable.The overall position error is less than 40 km,and the velocity error is 0.25m·s-1.The stability and accuracy of the results can meet the requirement of actual task,and is referencable for Chinese Mars exploration program.关键词
火星探测/接近段/光学自主导航/扩展卡尔曼滤波Key words
Mars exploration/Approach phase/Optical autonomous navigation/EKF分类
航空航天引用本文复制引用
崔文,张少愚,张树瑜,宝音贺西..火星探测接近段的光学自主导航研究[J].空间科学学报,2013,33(3):313-319,7.基金项目
国这重点基础研究发展计划项目(2012CB720000)和国家自然科学基金项目(11072122)共同资助 （2012CB720000）
