中文摘要：

介绍了目前煤矿井下无线通信的现状，分析了煤矿井下环境的特点以及对移动通信系统的影响，针对煤矿井下人为噪声强的特点，提出一种新的通信方法——反相对称一扩频通信法，建立了此方法的MATLAB仿真模型，并通过理论分析和仿真试验验证了该方法在井下移动通信中的优势。

英文摘要：

This paper presents an account about the status-quo of radio communication systems currently used in underground coal mines. The paper also presents an analysis of the main characters in underground coal mines environment and their impacts on mobile communication systems. In a hope to solve the problem of very strong noise in underground coal mine environment resulting from productive activities, the paper proposes a novel communication method, i. e. PIS-SSC （Phase-Inversion Symmetric-Spread Spectrum Communication）and establishes its MATLAB simulation model. Based on theoretical analysis and simulation tests, advantages of this communication in underground mobile communication are proved.