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Autonomous navigation and guidance for landing on asteroids

机译:自主导航和登陆小行星的指导

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摘要

This paper presents an autonomous landing navigation and guidance scheme for future asteroid sample return mission. An autonomous navigation scheme based on feature tracking technology is brought out firstly; secondly, desired descent landing trajectories with the initial and terminal constraints are planned in order to achieve arrive-at-time landing on an asteroid; then, two guidance control laws, based on error phase analysis method and PD plus PWPF method respectively, are designed to track reference descent trajectory; finally, the validity of the proposed scheme is confirmed by computer simulation.
机译:本文提出了未来小行星样本返回任务的自主着陆导航和制导方案。首先提出了一种基于特征跟踪技术的自主导航方案。其次,计划在初始和最终约束条件下的理想下降着陆轨迹,以实现在小行星上的及时到达着陆。然后,分别基于误差相位分析法和PD加PWPF法,设计了两种制导控制律来跟踪参考下降轨迹。最后,通过计算机仿真验证了所提方案的有效性。

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