文中对矿井隧道电磁干扰实测值进行分析,针对漏泄通信系统使用频段内的电磁干扰,使用扩频和组合编码的方法对系统进行改进,提高系统的抗干扰能力,并在接收机中增加窄带干扰抑制器抑制窄带脉冲干扰。文章同时给出了系统中基地台站、中继器、移动台改进电路以及漏泄通信电缆的扩频方法,此方法同样适合于对其他漏泄通信系统的改进。 In this paper, the measured values ​​of mine tunnel electromagnetic interference are analyzed. According to the electromagnetic interference in the frequency band used by the leakage communication system, the system is improved by the method of spread spectrum and combined coding to improve the anti-interference ability of the system and increase the narrowband interference in the receiver Suppressors suppress narrow-band impulsive interference. At the same time, the article also gives the base stations, repeaters, mobile stations in the system to improve the circuit and leakage communication cable spread spectrum method, this method is also suitable for other leaky communication system improvements.