arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.01932cs.ROcs.LGcs.SYeess.SY
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不确定风况下基于元学习的鲁棒自适应飞行控制

Meta-Learning-Based Robust Adaptive Flight Control Under Uncertain Wind Conditions

California Institute of Technology(加州理工学院)

Michael O'Connell, Guanya Shi, Xichen Shi, Soon-Jo Chung

摘要:

实时模型学习对于复杂的动态系统来说是一个挑战,例如在可变风力条件下飞行的无人机。诸如深度神经网络之类的机器学习技术具有高表示能力,但通常太慢而无法在板上更新。另一方面,自适应控制依赖于简单的线性参数模型,可以像反馈控制回路一样快速地更新。我们提出了一种在线复合自适应方法,将深度神经网络的输出作为一组能够代表不同风况的基函数。为了帮助训练,元学习技术用于优化对适应有用的网络输出。我们通过在不同的风力条件下和沿着具有挑战性的轨迹在露天风洞中飞行无人机来验证我们的方法。我们比较结果与其他自适应控制器与不同的基函数集,并显示改善跟踪和预测误差。

英文摘要:

Realtime model learning proves challenging for complex dynamical systems, such as drones flying in variable wind conditions. Machine learning technique such as deep neural networks have high representation power but is often too slow to update onboard. On the other hand, adaptive control relies on simple linear parameter models can update as fast as the feedback control loop. We propose an online composite adaptation method that treats outputs from a deep neural network as a set of basis functions capable of representing different wind conditions. To help with training, meta-learning techniques are used to optimize the network output useful for adaptation. We validate our approach by flying a drone in an open air wind tunnel under varying wind conditions and along challenging trajectories. We compare the result with other adaptive controller with different basis function sets and show improvement over tracking and prediction errors.

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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