基于DSP的矿井光纤直放系统的设计

Design of Fiber-optic Repeater System in Mine Based on DSP

  • 摘要: 根据煤矿井下巷道狭长、拐点多、分支多的特点,针对井下环境中移动通信系统通话质量差、可靠性低等问题,提出了一种基于DSP的矿井光纤直放系统的设计方案,详细介绍了系统基于DSP的自动监控单元和FIR数字滤波器的设计及语音激活技术在直放系统中的应用。该光纤直放系统解决了井下广域范围移动通信问题,采用DSP对系统实施自动监控,为系统稳定运行提供了可靠保障;数字滤波器的引入、话音激活技术的应用使井下通信系统性能更稳定、话音质量更好、抗干扰性更强,为矿井移动通信的最佳实现奠定基础。

     

    Abstract: According to features of coal mine such as narrow tunnel,more turning points and more branches,a design scheme of fiber-optic repeater system in mine based on DSP was proposed for the questions such as poor quality of mobile calls and low reliability of mobile communication system in underground environment.Designs of automatic monitoring and control unit based on DSP and FIR digital filter and application of voice activation technology in repeater system were introduced in details.The fiber-optic repeater system solves the difficulty of mobile communications in wide range in mine and uses DSP to monitor the system automatically to make the system stable.The application of digital filter and voice activation technology makes the underground communication system more stable in performance,better in voice quality and stronger in anti-interference.The system establishes a basis for best working of mobile communications in mine.

     

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