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| 基于DSP的矿井光纤直放系统的设计 | |
| 引用本文： | 李伟,赵承滨,宋婀娜,祁向前.基于DSP的矿井光纤直放系统的设计[J].工矿自动化,2010,36(2). |
| 作者姓名： | 李伟 赵承滨 宋婀娜 祁向前 |
| 作者单位： | 1. 黑龙江科技学院资源与环境工程学院 2. 黑龙江科技学院电气与信息工程学院 3. 黑龙江科技学院建筑工程学院,黑龙江,哈尔滨,150027 |
| 基金项目： | 黑龙江省教育厅科学技术研究项目(11521253) |
| 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。 |
| 关 键 词： | 矿井 移动通信 光纤直放系统 DSP FIR滤波 话音激活检测 舒适噪声产生 |
Design of Fiber-optic Repeater System in Mine Based on DSP |
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| LI Wei,ZHAO Cheng-bin,SONG E-nuo,QI Xiang-qian.Design of Fiber-optic Repeater System in Mine Based on DSP[J].Industry and Automation,2010,36(2). | |
| Authors: | LI Wei ZHAO Cheng-bin SONG E-nuo QI Xiang-qian |
| Affiliation: | 1.College of Resource and Environment Engineering of Heilongjiang Institute of Science and Technology/a>;Harbin 150027/a>;China.2.College of Electric and Information Engineering of Heilongjiang Institute of Science and Technology/a>;China.3.College of Architecture Engineering of Heilongjiang Institute of Science and Technology/a>;China |
| 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 ... |
| Keywords: | mine mobile communication fiber-optic repeater system DSP FIR filter voice activity detection comfort noise generation |
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