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本文针对转移轨道火星探测器对自主导航的迫切需求,提出了一种基于小行星和X射线脉冲星交互观测的自主导航方法,并结合工程任务对上述量测信息的获取方式和获取条件进行了研究,仿真结果表明,与单独基于小行星或单独基于X射线脉冲星观测的自主导航系统相比,该方法不仅可获得更高的导航精度,为转移轨道中途修正提供准确的轨道信息,且工程实现简单,是一种可行的转移轨道火星探测器自主导航方案,可为我国火星探测器自主导航系统的设计提供参考.
In this paper, an autonomous navigation method based on the interactive observation of asteroid and X-ray pulsar is proposed in view of the urgent need of satellite orbiting Mars probe for autonomous navigation. Combined with engineering tasks, the acquisition method and acquisition conditions of the above- The simulation results show that the proposed method not only achieves higher navigation precision than the single autonomous orbit-based autonomous navigation system based on X-ray pulsar observations, but also provides accurate orbit information for mid-course corrections of the transfer orbit It is a feasible autonomous navigation scheme of the orbiting Mars rover to provide a reference for the design of autonomous navigation system of Mars rover.