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首页> 外文期刊>Journal of guidance, control, and dynamics >Robust Planning of Nonlinear Rendezvous with Uncertainty
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Robust Planning of Nonlinear Rendezvous with Uncertainty

机译：具有不确定性的非线性交会的鲁棒规划

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摘要

Practical uncertainties are not considered by optimal rendezvous trajectory designs proposed in many current studies. In this study, a robust optimization method for on-ground rendezvous trajectory design is proposed by considering the uncertainties and orbital replanning process. Two robust performance indices related to the final rendezvous errors and the total velocity increment Δv are first defined, then a multi-objective optimization model (including the minimum Δv and minimum rendezvous errors) is formulated. The unscented transformation method is used to efficiently compute the robust indices in optimization process, and a multi-objective, nondominated sorting genetic algorithm is employed to obtain a Pareto-optimal solution set It is shown that the proposed approach can be used to design a rendezvous trajectory with the Av and final rendezvous errors that are both robust against uncertainties. Furthermore, the proposed approach can identify the most preferable design space in which specific solutions for practical application of rendezvous control are selected.
机译：当前许多研究中提出的最优集合轨迹设计都没有考虑实际不确定性。在这项研究中，通过考虑不确定性和轨道重新规划过程，提出了一种可靠的地面交会轨迹设计优化方法。首先定义了两个与最终交会误差和总速度增量Δv有关的鲁棒性能指标，然后制定了一个多目标优化模型（包括最小Δv和最小交会误差）。利用无味变换方法有效地计算了优化过程中的鲁棒性指标，并采用多目标非支配排序遗传算法获得了帕累托最优解集。结果表明，该方法可用于设计集合点。轨迹具有平均误差和最终会合误差，对不确定性都具有鲁棒性。此外，所提出的方法可以确定最优选的设计空间，在该空间中选择用于交会控制的实际应用的特定解决方案。

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  • 来源
    《Journal of guidance, control, and dynamics》 |2017年第8期|1954-1967|共14页
  • 作者

    Zhen Yang; Ya-zhong Luo; Jin Zhang;

  • 作者单位

    National University of Defense Technology, 410073 Changsha, People's Republic of China;

    National University of Defense Technology, 410073 Changsha, People's Republic of China;

    National University of Defense Technology, 410073 Changsha, People's Republic of China;

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