JOURNAL ARTICLE

井下可见光语音传输系统设计

张申张震

Year: 2016 Journal:   DOAJ (DOAJ: Directory of Open Access Journals)

Abstract

基于井下可见光通信对通信速率要求不高的特点,采用脉冲编码调制方式,设计了一种可实现移动矿灯与液压顶板LED基站之间通信的井下可见光语音传输系统。该系统采用TP3067芯片对语音信号进行脉冲编码,将编码信号叠加直流信号来驱动LED器件,接收端对接收的编码信号进行光电检测和放大处理后,解码恢复出语音信号。实验结果表明,该系统在2.048 Mbit/s通信速率下,接收光功率为-9 dB?m时,系统误码率为10-83,实现了语音信号不失真传输。

Keywords:
Political science

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