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Design of visible communication system based on PWM
Author(s): 
Pages: 50-53,90
Year: Issue:  11
Journal: Video Engineering

Keyword:  visible light communication;
Abstract: 为了解决传统可见光通信技术中抗光干扰能力弱的问题,采用脉冲宽度调制(PWM)的调制方式,以STM32为核心处理器,完成了可见光通信系统的设计.实验中将两颗50 ix光通量的LED光源发出的可见光作为信息载体,在室内非封闭空间的0.5m直视链路上,在9 600 Bd的单工通信下,误差仅为1.879 0×10-4.实验结果表明,基于PWM调制的可见光通信系统能降低室内光线干扰的问题,将促进可见光通信技术在室内无线通信领域的发展和应用.
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