无线磁感应透地通信传输距离分析

无线磁感应透地通信通过准静态磁场耦合的方式实现信息传输,可以有效解决传统电磁波透地通信中信道不稳定、传输距离近、天线尺寸大等问题.建立了磁感应透地通信模型,分析了磁感应透地通信中产生的磁场在不同方向上的衰减规律,以及发射天线主要参数、接收机的位置、接收机传感器灵敏度、大地磁导率对透地传输距离的影响,得到了透地传输距离关...

Transmission distance analysis of wireless magnetic induction through-the-earth communication

Wireless magnetic induction through-the-earth communication realizes information transmission through quasi-static magnetic field coupling,which can effectively solve the problems such as unstable channel,short transmission distance and large antenna size in traditional electromagnetic wave through-the-earth communication.The model of magnetic induction through-the-earth communication is established,the attenuation law of magnetic field in different directions is analyzed,as well as the influence of such main parameters as transmitting antenna,receiver position,receiver sensor sensitivity and the earth permeability on transmission distance.The function relationships between transmission distance and above parameters are obtained.Through simulation and analysis,the following conclusion is drawn:the magnetic induction through-the-earth communication has the advantages of long transmission distance and little influence on the geological media,and the through-the-earth depth can reach more than 600 m under appropriate parameter configuration.