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arXiv 2011.11909cs.RO
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四旋翼控制的旋转误差补偿

Rotational Error Metrics for Quadrotor Control

Carnegie Mellon University(卡内基梅隆大学)

Alexander Spitzer, Nathan Michael

摘要:

我们分析和实验比较各种旋转误差指标用于四旋翼控制器。传统的四旋翼姿态控制器使用欧拉角或全旋转来计算姿态误差,并缩放以计算控制响应。最近,一些工作已经表明,优先考虑四旋翼倾斜,或推力矢量误差,在姿态控制器中导致改善的位置控制,特别是在具有大偏航误差的情况下。我们提供了一个目录的建议旋转指标,将它们放入同一个框架,并表明,我们可以独立的原因和设计的响应的大小和方向的响应。现有方法主要分为两类:(1)在最短方向上引起响应以校正全旋转误差的度量,以及(2)将在最短方向上校正倾斜误差的响应与在最短方向上校正偏航误差的响应组合的度量。我们展示了实验结果,以突出旋转误差度量之间的显着差异。请参见https://alspitz.github.io/roterrormetrics.html,以获得可视化所执行实验的交互式模拟。

英文摘要:

We analyze and experimentally compare various rotational error metrics for use in quadrotor controllers. Traditional quadrotor attitude controllers have used Euler angles or the full rotation to compute an attitude error and scale that to compute a control response. Recently, several works have shown that prioritizing quadrotor tilt, or thrust vector error, in the attitude controller leads to improved position control, especially in situations with large yaw error. We provide a catalog of proposed rotational metrics, place them into the same framework, and show that we can independently reason about and design the magnitude of the response and the direction of the response. Existing approaches mainly fall into two categories: (1) metrics that induce a response in the shortest direction to correct the full rotation error and (2) metrics that combine a response in the shortest direction to correct tilt error with the shortest direction to correct yaw error. We show experimental results to highlight the salient differences between the rotational error metrics. See https://alspitz.github.io/roterrormetrics.html for an interactive simulation visualizing the experiments performed.

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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