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arXiv 2303.01288math.OC
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基于统计线性化的鲁棒运动规划

Statistical Linearization for Robust Motion Planning

Clara Leparoux, Riccardo Bonalli, Bruno Hérissé, Frédéric Jean

摘要:

鲁棒运动规划的目标包括设计开环控制,其最佳地将系统引导到特定目标区域,同时减轻影响动态的不确定性和干扰。最近,随机最优控制使特别准确的配方的问题。然而,尽管有有趣的进展,这些问题的公式仍然需要昂贵的数值计算。在本文中,我们开始利用统计线性化来弥合这一差距。具体而言,通过统计线性化,我们重新制定的强大的运动规划问题作为一个更简单的确定性最优控制问题的额外的约束。我们严格证明我们的方法提供的近似误差估计,以及一些可控性的结果,新的约束确定性制定。最后,我们将我们的方法应用于航天器的动力下降,通过数值实验展示了我们的方法的一致性和效率。

英文摘要:

The goal of robust motion planning consists of designing open-loop controls which optimally steer a system to a specific target region while mitigating uncertainties and disturbances which affect the dynamics. Recently, stochastic optimal control has enabled particularly accurate formulations of the problem. Nevertheless, despite interesting progresses, these problem formulations still require expensive numerical computations. In this paper, we start bridging this gap by leveraging statistical linearization. Specifically, through statistical linearization we reformulate the robust motion planning problem as a simpler deterministic optimal control problem subject to additional constraints. We rigorously justify our method by providing estimates of the approximation error, as well as some controllability results for the new constrained deterministic formulation. Finally, we apply our method to the powered descent of a space vehicle, showcasing the consistency and efficiency of our approach through numerical experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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