一、绪言煤矿井下无线电通讯,要求具有在日常生产活动中,能进行必要的联系和在瓦斯煤尘爆炸,井下火灾、瓦斯突出等非常情况下,能进行确实准确的通讯联络饥能。另外,随着煤炭采掘区域的不断扩大和向深部延伸,为集中监视井下状况,将井下各部位的情报信息归纳并迅速、高效地传播,在安全上也是极为重要的。 I. INTRODUCTION Coal Mine Radiocommunication requires that it has the ability to carry out accurate and accurate communication and communication under the extraordinary circumstances of daily production activities such as the necessary contact and gas explosion, underground fire and gas outburst. In addition, as coal mining areas continue to expand and extend to the depths, in order to focus on monitoring downhole conditions, the information of various parts of the mine can be summarized and disseminated rapidly and efficiently, which is also extremely important in terms of safety.