基于无线地下传感网的信道路径损耗系统设计与实现

Design and Implementation of Communication Channel Path Loss System Based on Wireless Underground Sensor Network

针对复杂的地下环境中电磁波技术通信方式面临严重的信道路径损耗和不稳定的信道状态,通过采用磁感应技术并且在磁感应通信系统基础上引入中继波导线圈来有效解决信道路径损耗较大的问题,可以有效延长无线通信距离。论文设计了地下无线磁感应通信系统,搭建了实验测试平台,实验结果表明,该系统引入中继波导线圈能够有效解决信道路径损耗较大的问题,有效延长无线通信距离,为无线地下传感器网络的应用提供重要参考。

Aiming at the electromagnetic wave technology communication method in complex underground environment faces serious channel path loss and unstable channel state,by adopting magnetic induction technology and introducing relay waveguide coil based on magnetic induction communication system,the channel path loss is greatly solved.The problem can effectively extend the wireless communication distance.In this paper,an underground wireless magnetic induction communication system is designed and an experimental test platform is built.The experimental results show that the introduction of the relay waveguide coil can effec⁃tively solve the problem of large channel path loss and effectively extend the wireless communication distance for the application of wireless underground sensor networks.It provides an important reference.