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arXiv 2403.01428cs.ROeess.SP
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定位同样重要:定位误差如何影响无人机飞行

Localization matters too: How localization error affects UAV flight

Tsinghua University(清华大学);Shenzhen International Graduate School, Tsinghua University(清华大学深圳国际研究生院)

Suquan Zhang, Yuanfan Xu, Shu'ang Yu, Qingmin Liao, Jincheng Yu, Yu Wang

AI总结:

针对无人机定位误差对最大安全飞行速度影响缺乏定量研究的问题,构建了含定位误差等多参数的速度关系模型,经仿真验证误差低于20%,可为无人机系统软硬件选型提供参考。

摘要:

无人机(UAV)的最大安全飞行速度是衡量其完成各类任务效率的重要指标,该指标受无人机定位误差、感知范围、系统延迟等诸多参数影响。然而在定位误差方面,尽管已有大量研究致力于提升无人机的定位能力,但缺乏针对定位误差对飞行速度影响的定量研究。本研究对无人机各项参数与其最大飞行速度之间的关系进行建模。我们设定了类似在茂密森林中导航的场景——无人机需要快速躲避正前方障碍物,并在避障后迅速调整航向。基于该场景,我们研究了定位误差等参数如何影响无人机飞行过程中的最大安全速度,以及这些参数之间的耦合关系。此外,我们在仿真环境中验证了所提出的模型,结果显示模型预测的最大安全速度与测试速度相比误差低于20%。在高密度场景下,定位误差对无人机的最大安全飞行速度具有显著影响。该模型可帮助设计人员选用更合适的软硬件来构建无人机系统。

英文摘要:

The maximum safe flight speed of a Unmanned Aerial Vehicle (UAV) is an important indicator for measuring its efficiency in completing various tasks. This indicator is influenced by numerous parameters such as UAV localization error, perception range, and system latency. However, in terms of localization errors, although there have been many studies dedicated to improving the localization capability of UAVs, there is a lack of quantitative research on their impact on speed. In this work, we model the relationship between various parameters of the UAV and its maximum flight speed. We consider a scenario similar to navigating through dense forests, where the UAV needs to quickly avoid obstacles directly ahead and swiftly reorient after avoidance. Based on this scenario, we studied how parameters such as localization error affect the maximum safe speed during UAV flight, as well as the coupling relationships between these parameters. Furthermore, we validated our model in a simulation environment, and the results showed that the predicted maximum safe speed had an error of less than 20% compared to the test speed. In high-density situations, localization error has a significant impact on the UAV's maximum safe flight speed. This model can help designers utilize more suitable software and hardware to construct a UAV system.

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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