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本文主要介绍了透地通信技术的发展,透地通信机理及其性能;并对透地信号的传播衰减、信道的带宽和系统的功率利用效率进行了分析。可知:在目前研究的技术中,天线感应方式应用最广,但由于地电极方式能量效率高,因而是比较有前景的。弹性波透地通信方式由于使用振动源会产生弹性波信号,因而不适合在发生岩爆和冒顶时使用。
This paper mainly introduces the development of through-the-ground communication technology, the mechanism and performance of through-the-ground communication, and analyzes the propagation attenuation, the bandwidth of the channel and the power utilization efficiency of the system. It can be seen that in the currently studied technologies, the antenna sensing mode is the most widely used, but it is more promising due to the high energy efficiency of the ground electrode mode. Elastic wave through-ground communication method due to the use of vibration sources will produce elastic wave signal, and therefore not suitable for use in rock burst and roof.