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首页> 外文期刊>Transactions of the Japan society for aeronautical and space sciences >Receding Horizon-Based Dual Control Strategy for Pinpoint Planetary Landing
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Receding Horizon-Based Dual Control Strategy for Pinpoint Planetary Landing

机译：基于地平线的双控制策略精确定位行星着陆

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摘要

A receding horizon-based dual control strategy for a planetary landing mission is developed. This strategy introduces the receding horizon framework to solve the nonlinear dynamic path planning problem with the state constraint, which makes up for the defects of the typical polynomial guidance law when it is used in landing on a planet with irregular gravity. Furthermore, the trade-off between efficient control and reliable estimation is considered. The cost incurred by the system uncertainty is incorporated into the performance index. Furthermore a linear feedback control law is provided with the quadratic performance index considering the dual features, which takes advantage of the nonlinear coupling between observability and trajectory to overcome the lack of observability and achieve better estimation performance. By stochastically optimizing the landing trajectory obtained from the receding horizon based convex programming method, the overall performance of the guidance, navigation and control (GNC) system for landing on planets is improved.
机译：为行星着陆任务开发了一种基于后退地平线的双重控制策略。该策略引入了后退视界框架，以解决带有状态约束的非线性动态路径规划问题，弥补了典型的多项式制导律在着陆不规则重力下着陆时的缺陷。此外，考虑了有效控制和可靠估计之间的权衡。系统不确定性所导致的成本被纳入性能指标。此外，考虑了双重特征，提供了具有二次性能指标的线性反馈控制律，该规律利用可观察性与轨迹之间的非线性耦合来克服可观察性的不足并获得更好的估计性能。通过随机优化从基于后退地平线的凸规划方法获得的着陆轨迹，可以改善在行星上着陆的制导，导航和控制（GNC）系统的整体性能。

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