应用于地下无线传感器网络的磁通信电路分析  

Analysis of Magnetic Induction Communication Circuit for Wireless Underground Sensor Networks

作　　者：谢璐[1] 杨玉华[1] 单彦虎[1] 武慧军[1] 

机构地区：[1]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《仪表技术与传感器》2016年第8期123-126,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(61471324)

摘　　要：针对地下无线传感器网络中通信效率低、接收点有用信号弱的现状,基于磁感应原理,以磁通信电路模型的建立为切入点,运用互感理论,推导出负载功率、路径损耗和传输效率的表达式,通过理论分析,得到路径损耗以及传输效率分别与天线参数、工作频率、通信距离的具体关系。试验仿真结果表明:通过改变工作频率和天线参数可以弥补实际通信距离的需要,提高通信质量,为地下无线传感网络的应用提供参考。For situations that low communication efficiency and weak useful signal on the receiving point were faced by wireless underground sensor networks（WUSNs）,according to magnetic induction principle,establish of magnetic communication circuit model was as the entry point,then,the expressions of load power,path loss and transmission efficiency were deduced based on mutual induction theory.Moreover,relations among path loss,transmission efficiency,antenna parameter,working frequency and communication distance were obtained.Test simulation results prove that communication distance can be optimized by changing working frequency and antenna parameters,and communication quality can be improved,thus providing reference for the application of the underground wireless sensor network.

关 键 词：地下无线传感器网络 磁通信 路径损耗 传输效率 

分 类 号：TN929[电子电信—通信与信息系统]