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arXiv 2402.12129cs.RO
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用于自动驾驶路径规划的改进RRT*

Modified RRT* for Path Planning in Autonomous Driving

Indian Institute of Information Technology, Kottayam(印度信息技术学院科塔亚姆分校);National Institute of Technology, Tiruchirappalli(印度国家技术学院蒂鲁吉拉伯利分校)

Sugirtha T, Pranav S, Nitin Benjamin Dasiah, Sridevi M

AI总结:

本文提出两阶段路径规划算法AD-RRT*,结合A*全局规划与角度约束的RRT*改进,解决复杂环境最优路径问题,实验表明其收敛率更高、耗时与节点数更少。

摘要:

自动驾驶的基本任务包括环境感知、检测与跟踪、路径规划和动作控制。本文聚焦于路径规划,由于需要在高度复杂和动态的环境中寻找最优路径,这是一项具有挑战性的任务。通常,驾驶场景的路线上存在大量障碍物。本文提出了一种名为基于角度的有向快速扩展随机树(AD-RRT*)的两阶段路径规划算法,以解决复杂环境中的最优路径问题。该算法使用A*算法进行全局路径规划,并对RRT*进行修改,利用角度限制采样。通过基于障碍物位置和数量的不同场景实验,评估了该算法的效率。与基础RRT*算法相比,所提算法具有更高的收敛率,且时间和节点数更少。

英文摘要:

Essential tasks in autonomous driving includes environment perception, detection and tracking, path planning and action control. This paper focus on path planning, which is one of the challenging task as it needs to find optimal path in highly complex and dynamic environments. Usually, a driving scenario has large number of obstacles in their route. In this paper, we propose a two-stage path planning algorithm named Angle-based Directed Rapidly exploring Random Trees (AD-RRT*) to address the problem of optimal path in complex environment. The proposed algorithm uses A* algorithm for global path planning and modifies RRT* to bound the samples using angle. The efficiency of the proposed algorithm is evaluated through experiments in different scenarios based on the location and number of obstacles. The proposed algorithm showed higher rate of convergence with reduced time and less number of nodes than the base RRT* algorithm.

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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