arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.13098cs.ROcs.AIcs.SYeess.SY
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基于Frenet空间的端到端深度强化学习长短期规划方法

An End-to-end Deep Reinforcement Learning Approach for the Long-term Short-term Planning on the Frenet Space

University of California Santa Cruz(加州大学圣克鲁兹分校);Istanbul Technical University(伊斯坦布尔理工大学)

Majid Moghadam, Ali Alizadeh, Engin Tekin, Gabriel Hugh Elkaim

摘要:

由于预测其他道路使用者行为的复杂性、环境的多样性和交通交互的复杂性,用于自主公路驾驶的战术决策和战略运动规划具有挑战性。本文提出了一种新的端到端连续深度强化学习方法,用于自动驾驶汽车的决策和运动规划。我们首次在Frenet空间上定义了状态空间和动作空间,使驾驶行为对道路曲率的变化比周围行为者的动态和交通相互作用小。智能体接收周围车辆过去轨迹的时间序列数据,并沿时间通道应用卷积神经网络来提取骨干中的特征。该算法在Frenet坐标系上生成连续的时空轨迹,供反馈控制器跟踪。在CARLA上进行的大量高保真高速公路仿真表明,与常用的基线和离散强化学习相比,该方法在各种交通场景下具有优越性。此外,所提出的方法的优势,证实了一个更全面的性能评估对1000随机生成的测试方案。

英文摘要:

Tactical decision making and strategic motion planning for autonomous highway driving are challenging due to the complication of predicting other road users' behaviors, diversity of environments, and complexity of the traffic interactions. This paper presents a novel end-to-end continuous deep reinforcement learning approach towards autonomous cars' decision-making and motion planning. For the first time, we define both states and action spaces on the Frenet space to make the driving behavior less variant to the road curvatures than the surrounding actors' dynamics and traffic interactions. The agent receives time-series data of past trajectories of the surrounding vehicles and applies convolutional neural networks along the time channels to extract features in the backbone. The algorithm generates continuous spatiotemporal trajectories on the Frenet frame for the feedback controller to track. Extensive high-fidelity highway simulations on CARLA show the superiority of the presented approach compared with commonly used baselines and discrete reinforcement learning on various traffic scenarios. Furthermore, the proposed method's advantage is confirmed with a more comprehensive performance evaluation against 1000 randomly generated test scenarios.

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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