论文标题
蓝牙5.1天线阵列的设计和实验评估，用于到达角度估计
Design and Experimental Evaluation of a Bluetooth 5.1 Antenna Array for Angle-of-Arrival Estimation
论文作者
论文摘要
关于在本领域的应用程序（IoT）（IoT）是在基于卫星的全球定位是不可能的特定应用程序环境中的实时定位。已经评估了许多依赖无线传感器网格系统的定位方法，但是最近的蓝牙低能（BLE）5.1方向基于到达角度（AOA）找到特征，确立了该应用程序的低成本解决方案。在本文中，我们介绍了基于BLE 5.1的圆形天线阵列的实现，并对从阵列采样的检索数据的质量进行了两次实验评估。具体而言，我们检索了恒定音调扩展的相值样品，该样品通过计算天线对之间的相位差异来使方向找到功能。我们使用由四个BLE信标组成的设置评估了态室和现实环境中采样相数据的质量。
On the of the applications in the realm of the Internet-of-Things (IoT) is real-time localization of assets in specific application environments where satellite based global positioning is unviable. Numerous approaches for localization relying on wireless sensor mesh systems have been evaluated, but the recent Bluetooth Low Energy (BLE) 5.1 direction finding features based on Angle-of-Arrival (AoA) promise a low-cost solution for this application. In this paper, we present an implementation of a BLE 5.1 based circular antenna array, and perform two experimental evaluations over the quality of the retrieved data sampled from the array. Specifically, we retrieve samples of the phase value of the Constant Tone Extension which enables the direction finding functionalities through calculation of phase differences between antenna pairs. We evaluate the quality of the sampled phase data in an anechoic chamber, and in a real-world environment using a setup composed of four BLE beacons.
