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- 2016
火星探测巡航段自主导航方法研究
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Abstract:
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
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