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arXiv 2105.03032eess.SYcs.SY
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四旋翼无人机动力学建模与控制的符号回归方法

A Symbolic Regression Method for Dynamic Modeling and Control of Quadrotor UAVs

Wei Fang, Zhiyong Chen

摘要:

采用符号回归方法建立了四旋翼无人机(QUAV)的动力学数学模型,提出了一种轨迹跟踪的递阶控制方案。符号回归方法能够仅通过所收集的数据来构造解析的四旋翼动力学方程,这减轻了第一原理建模的负担。为了便于QUAV的位置跟踪控制,控制器的设计可以分为两部分:首先,位置子系统的比例积分控制器的设计,以获得期望的水平位置和姿态子系统的反推方法,以确保欧拉角和高度可以快速收敛到参考值。在基准多旋翼飞行器仿真器上进行了实验,验证了该方法的有效性。

英文摘要:

This paper presents a mathematic dynamic model of a quadrotor unmanned aerial vehicle (QUAV) by using the symbolic regression approach and then proposes a hierarchical control scheme for trajectory tracking. The symbolic regression approach is capable of constructing analytical quadrotor dynamic equations only through the collected data, which relieves the burden of first principle modeling. To facilitate position tracking control of a QUAV, the design of controller can be decomposed into two parts: a proportional-integral controller for the position subsystem is first designed to obtain the desired horizontal position and the backstepping method for the attitude subsystem is developed to ensure that the Euler angles and the altitude can fast converge to the reference values. The effectiveness is verified through experiments on a benchmark multicopter simulator.

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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