基于鉴相器的LoRa技术到达角估计系统

Noori Bnilam, Samer Nasser, M. Weyn
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引用次数: 4

摘要

本文提出了一种综合的低功耗、低成本的到达角估计系统。该系统由硬件体系结构和AoA估计算法组成。所提出的硬件捕获接收信号的相位值,并将其发送到最近的LoRaWAN网关。在云中,将执行AoA估计算法,对接收信号的AoA进行估计。所提出的硬件是通用的,它可以估计在低于2.7 GHz的频率下工作的任何接收信号的AoA。然而,我们已经用工作在868 MHz频段的LoRa信号验证了它的性能。在受控环境下进行的实验验证表明,该系统可以估计不同方位角接收信号的AoA,估计误差中值为4度,最大误差为14度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Angle of Arrival Estimation System for LoRa Technology based on Phase Detectors
In this paper, we propose a comprehensive low-power and low-cost Angle of Arrival (AoA) estimation sys-tem. The proposed system consists of a hardware architecture and an AoA estimation algorithm. The proposed hardware captures the phase values of the received signal and transmits them to the nearest LoRaWAN gateway. In the cloud, an AoA estimation algorithm will be performed, and the AoA of the received signal will be estimated. The proposed hardware is generic, and it can estimate the AoA of any received signal that is operating at a frequency below 2.7 GHz. However, we have validated its performance with LoRa signals that are operating at the 868 MHz frequency band. The experimental validation, which has been conducted in a controlled environment, reveals that the proposed system can estimate the AoA of the received signals from various azimuth angles with median and maximum estimation errors of 4 and 14 degrees, respectively.
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