Measurement and Modeling of Electromagnetic Noise in Industrial Environments

被引：0
|
作者：
Yuan Z. [1 ]
Liu L. [1 ]
Zhang K. [1 ]
机构：
[1] School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing
来源：
Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications | 2019年 / 42卷 / 01期
关键词：
Electromagnetic noise; Industrial Internet of things; Truncated Laplace distribution;
D O I：
10.13190/j.jbupt.2018-127
中图分类号：
学科分类号：
摘要：
Factory-level electromagnetic noise has a huge impact on industrial Internet of things which mainly uses low-power wireless sensor devices. For this reason, a log periodic antenna and a spectrum analyzer are used to measure the electromagnetic noise in the welding workshop and the office area of a car factory. We obtain the frequency, power and other information of electromagnetic noise in 0.3~3 GHz bands from the frequency domain measurement. The noise spectrum shows a spike shape, and the truncated Laplace distribution can be used for modeling. In time domain measurement, the noise data of 315 MHz, 779 MHz and 916 MHz are collected, and we also get the three parameters of amplitude probability distribution, pulse duration distribution and pulse separation distribution. The measurement results indicate that the results of horizontal and vertical polarization are similar. The influence of noise in the office area is less than that in the welding workshop. © 2019, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.
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页码：93 / 101
页数：8
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