一种可见光通信光接收器的优化与实验  

Optimization and experiment for an VLC optical receiver

作　　者：王涛[1,2] 陈善继[1,2] 胡文芳 WANG Tao;CHEN Shanji;HU Wenfang(National Experimental Teaching Demonstration Center for Communication Engineering Education,Qinghai Minzu University,Xining 810007,China;Key Laboratory of Communication Engineering,Qinghai Minzu University,Xining 810007,China;The 28th Middle School of Xining,Xining 810007,China)

机构地区：[1]青海民族大学通信工程国家级实验教学示范中心,青海西宁810007 [2]青海民族大学通信工程省级重点实验室,青海西宁810007 [3]西宁市第二十八中学,青海西宁810007

出　　处：《现代电子技术》2023年第9期18-22,共5页Modern Electronics Technique

基　　金：2022年度青海省重点研发与转化计划科技援青合作专项项目(2022-QY-205);青海民族大学2021年度校级高层次人才(博士)项目(2021XJG12)。

摘　　要：可见光通信在强背景光应用场景中面临着严重的干扰问题。针对自然光干扰,基于多级阻挡原理,提出一种光接收器优化方案,并在强自然光环境中对正弦波信号和字符分别进行了传输实验。实验结果表明,该方案能够有效抑制自然光,显著改善通信性能,为强背景光场景中的可见光通信提供了一种有效的光接收器。Visible light communication(VLC)is faced with serious interference problem in strong background light application scenarios.Therefore,on the basis of the principle of multi⁃level blocking,an optimization scheme for optical receiver is proposed to eliminate the natural light interference.In the strong natural light environment,the transmission experiments of sine wave signal and characters were carried out respectively.The experimental results show that this scheme can effectively suppress natural light,and significantly improve the communication performance,which can provide an effective VLC optical receiver in strong background light scenes.

关 键 词：可见光通信 光接收器 信号传输 自然光抑制 光阻挡器 多级阻挡 抑噪技术 

分 类 号：TN929.1-34[电子电信—通信与信息系统]