煤矿井下的巷道距离远、拐点多、分布杂,在这样的环境中移动通信系统通话质量差、可靠性低,如采用地面传统的架设无线电通信基站的方式则成本太高,覆盖也较难完善。提出一种基于DSP的矿井光纤直放站。该光纤直放站解决了井下广域范围的移动通信问题,采用DSP对系统进行自动监控,并对信号进行滤波,为系统稳定运行提供了可靠保障。 Coal mine underground tunnel distance, inflection point, distribution of miscellaneous, in such an environment mobile communication system call quality is poor, low reliability, such as the use of the ground to set up a radio base station approach is too costly, coverage is also more difficult to perfect. A DSP-based mine optical fiber repeater is proposed. The optical fiber repeater solves the problem of mobile communication in a wide range of underground areas. It adopts DSP to automatically monitor the system and filter the signal, which provides a reliable guarantee for the stable operation of the system.