火星探测巡航段自主导航方法研究  

Research on Autonomous Navigation Method for the Cruise Phase of Mars Exploration

作　　者：宋敏[1,2] 袁运斌[1] 

机构地区：[1]中国科学院测量与地球物理研究所大地测量与地球动力学国家重点实验室,湖北武汉430077 [2]上海市空间导航与定位技术重点实验室,上海200030

出　　处：《武汉大学学报（信息科学版）》2016年第7期952-957,共6页Geomatics and Information Science of Wuhan University

基　　金：国家973计划(2012CB825604);上海市空间导航与定位技术重点实验室开放研究基金(12DZ2273300);地理空间信息工程国家测绘地理信息局重点实验室开放研究基金(201119)~~

摘　　要：针对火星探测巡航段轨道导航需求,结合不同的星载敏感器提出了一种基于太阳、地球、火星及恒星信息的火星巡航段自主导航方法。该方法根据导航天体的特点,在分析不同导航天体观测模型基础上,根据地球视线矢量和火星视线矢量的可观性,结合信息融合技术,建立了基于太阳、地球、恒星观测以及太阳、火星、恒星观测两种模式下的多源天体数据融合处理方案,实现了探测器位置与速度信息的实时估计。仿真结果表明,本文方法能够有效地利用多源导航天体观测信息,为巡航轨道提供高精度的导航结果,可满足火星探测巡航段任务要求。In order to meet the navigation demand of the Mars exploration cruise phase,an autonomous navigation method based on observing the Sun,Mars,Earth and Stars with different sensors is presented in this paper.According to the characteristics of celestial navigation,the paper analyzes the different observation models.After that,according to the operability of the Line-of-Sight between Earth and Mars,two navigation models are established which use the Sun,Earth and Star observations and the Sun,Mars,Star observations,respectively.Then combined with information fusion technology,a real-time position and velocity estimation of the probe is achieved in any kind of navigation model.Finally,the feasibility of the method is verified by simulations.Simulation results show that the proposed method can be more feasible and efficient using multi-source observations,and can provide precise orbit determination information which meets the navigation requirements of the Mars exploration cruise phase.

关 键 词：深空探测 自主导航 信息融合 巡航轨道 

分 类 号：P228.41[天文地球—大地测量学与测量工程]