透地无线通信研究综述

综述了中外透地通信的发展及研究现状,介绍了几种不同透地通信方式的研究与性能情况,通过对比具有代表性的透地通信产品PED系统、Canary系统、矿用本安型无线岩体通信系统、声波透地通信系统的优缺点,阐述了透地通信系统的实际应用情况.基于其原理建立了简化的透地通信信道模型,通过三维地质建模技术、插值技术建立信道模型,并采用数值计算法研究地层中电磁场的传播特性.最后结合当前研究和应用热点,分别阐述了电磁波透地通信与磁感应透地通信存在的主要问题与相应的关键技术研究,并提出了未来的研究重点与发展趋势.

Review of research on through-the-earth wireless communication

The development and current situation of through-the-earth communication at home and abroad are reviewed, the research and performance of several different transmission modes are introduced. By comparing the advantages and disadvantages of the representative through-the-earth communication products, PED system, Canary system, intra-safety wireless rock communication system for mining and acoustic through-the-earth communication system, the progress of the through-the-earth communication system in practical application is described. A simplified transmission channel model is established based on its principle. The channel model is established by three-dimensional geological modeling technology and interpolation technology, and the propagation characteristics of electromagnetic field in the formation are studied by numerical calculation method. Finally, combined with the current research and application hotspots, this paper expounds the main problems and the corresponding key technology research of electromagnetic wave through-the-earth communication and magnetic induction through-the-earth communication respectively, and puts forward the future research emphasis and development trend.