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首页> 外文期刊>Microwaves, Antennas & Propagation, IET >Design and field trial measurement results for a portable and low-cost very-high-frequency/ultra-high-frequency channel sounder platform for Internet of things propagation research
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Design and field trial measurement results for a portable and low-cost very-high-frequency/ultra-high-frequency channel sounder platform for Internet of things propagation research

机译：用于物联网传播研究的便携式低成本超高频/超高频通道探测仪平台的设计和现场试验测量结果

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摘要

Propagation research is vital for informing the design of reliable very high-frequency and ultra-high-frequency communications systems for the Internet of things. In this study, a cost-effective and highly portable system is proposed and then used to obtain propagation measurements in city and suburban scenarios at 71 and 869.525 MHz. The system calculates the received power, power delay profile and channel frequency response. The portable sounding receiver uses readily available parts: an RTL-SDR (covering 27 MHz-1.7 GHz) and a Raspberry Pi with a touchscreen. The Pi implements all the channel sounding signal processing algorithms in Python, in near real time. Extracted propagation data and models are presented, from example city and suburban field trials incorporating pedestrian and car use.
机译：传播研究对于为物联网提供可靠的超高频和超高频通信系统的设计至关重要。在这项研究中，提出了一种具有成本效益的，高度便携的系统，然后将其用于在71和869.525 MHz的城市和郊区场景中获得传播测量。系统计算接收到的功率，功率延迟曲线和信道频率响应。便携式探测接收器使用现成的部件：RTL-SDR（覆盖27 MHz-1.7 GHz）和带有触摸屏的Raspberry Pi。 Pi几乎以实时方式在Python中实现了所有声道探测信号处理算法。展示了提取的传播数据和模型，这些数据和模型来自结合行人和汽车使用情况的城市和郊区实地试验。

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