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arXiv 2006.02513cs.RO
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时间最优四旋翼机动的多逼真度黑箱优化

Multi-Fidelity Black-Box Optimization for Time-Optimal Quadrotor Maneuvers

Massachusetts Institute of Technology(麻省理工学院)

Gilhyun Ryou, Ezra Tal, Sertac Karaman

摘要:

我们考虑的问题,产生一个时间最优的四旋翼轨迹,达到一组规定的航路点。这个问题是具有挑战性的,因为最优轨迹位于动态可行轨迹集的边界上。这个边界很难建模,因为它涉及敏捷高速飞行中整个系统(包括硬件和软件)的限制。在这项工作中,我们提出了一个多保真度贝叶斯优化框架,模型的基础上的分析近似,数值模拟和现实世界的飞行实验的可行性约束。通过在不同的飞行速度下结合评估,优化了轨迹时间,同时将所需的昂贵飞行实验的数量保持在最低限度。该算法在模拟和真实世界的飞行实验中进行了全面评估,速度高达11米/秒。由此产生的轨迹被发现是显着快于那些通过最小快照轨迹规划。

英文摘要:

We consider the problem of generating a time-optimal quadrotor trajectory that attains a set of prescribed waypoints. This problem is challenging since the optimal trajectory is located on the boundary of the set of dynamically feasible trajectories. This boundary is hard to model as it involves limitations of the entire system, including hardware and software, in agile high-speed flight. In this work, we propose a multi-fidelity Bayesian optimization framework that models the feasibility constraints based on analytical approximation, numerical simulation, and real-world flight experiments. By combining evaluations at different fidelities, trajectory time is optimized while keeping the number of required costly flight experiments to a minimum. The algorithm is thoroughly evaluated in both simulation and real-world flight experiments at speeds up to 11 m/s. Resulting trajectories were found to be significantly faster than those obtained through minimum-snap trajectory planning.

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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