覆盖层
发射机
信号(编程语言)
电场
电极
电压
无线
通信系统
电极阵列
电气工程
磁场
计算机科学
声学
物理
电信
工程类
采矿工程
量子力学
频道(广播)
程序设计语言
作者
Lincan Yan,Chenming Zhou,Miguel Reyes,Bruce Whisner,Nicholas Damiano
出处
期刊:Radio Science
[Wiley]
日期:2017-06-01
卷期号:52 (6): 731-742
被引量:11
摘要
There are two types of through-the-earth (TTE) wireless communication in the mining industry: magnetic loop TTE and electrode-based (or linear) TTE. While the magnetic loop systems send signal through magnetic fields, the transmitter of an electrode-based TTE system sends signal directly through the mine overburden by driving an extremely low frequency (ELF) or ultralow frequency (ULF) AC current into the earth. The receiver at the other end (underground or surface) detects the resultant current and receives it as a voltage. A wireless communication link between surface and underground is then established. For electrode-based TTE communications, the signal is transmitted through the established electric field and is received as a voltage detected at the receiver. It is important to understand the electric field distribution within the mine overburden for the purpose of designing and improving the performance of the electrode-based TTE systems. In this paper, a complete explicit solution for all three electric field components for the electrode-based TTE communication was developed. An experiment was conducted using a prototype electrode-based TTE system developed by National Institute for Occupational Safety and Health. The mathematical model was then compared and validated with test data. A reasonable agreement was found between them.
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