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arXiv 2103.04121cs.NI
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蓝牙5.1室内与室外测向实验研究

An Experimental Study on Direction Finding of Bluetooth 5.1: Indoor vs Outdoor

Pradeep Sambu, Myounggyu Won

摘要:

蓝牙特别兴趣小组(Bluetooth SIG)在蓝牙核心规范5.1中引入了一项用于高度精确定位的新功能,称为方向查找。由于这种新的定位功能相对较新,尽管工业界和学术界对蓝牙设备/标签的准确定位非常感兴趣,但只有少数实验研究用于评估新技术的性能。此外,这些实验工作仅限于室内环境或通过通用软件无线电外设(USRP)与蓝牙5.1的硬件仿真执行。在本文中,我们使用COTS蓝牙5.1设备在展台室内和室外环境中的定位精度进行了实验研究,以提供这些不同的实验设置下的性能差距的见解。我们的研究结果表明,在室外环境中的平均角度误差为0.28度,显着改善了73%的室内环境中测量的角度误差。在室外环境下测得的平均定位精度为22 cm,比室内环境下测得的平均定位精度小39.7%。

英文摘要:

The Bluetooth Special Interest Group (Bluetooth SIG) introduced a new feature for highly accurate localization called the Direction Finding in the Bluetooth Core Specification 5.1. Since this new localization feature is relatively new, despite the significant interest of industry and academia in the accurate positioning of Bluetooth devices/tags, there are only a handful of experimental studies conducted to evaluate the performance of the new technology. Furthermore, these experimental works are constrained to only indoor environments or performed with hardware emulation of Bluetooth 5.1 via Universal Software Radio Peripherals (USRPs). In this paper, we perform an experimental study on the positioning accuracy of the direction finding using COTS Bluetooth 5.1 devices in booth indoor and outdoor environments to provide insights on the performance gap under these different experimental settings. Our results demonstrate that the average angular error in an outdoor environment is 0.28 degrees, significantly improving the angular error measured in an indoor environment by 73%. It is also demonstrated that the average positioning accuracy measured in an outdoor environment is 22cm which is 39.7% smaller than that measured in an indoor environment.

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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