可见光通信系统平衡编码技术的研究  

Research on Balance Coding Technique of Visible Light Communication System

作　　者：唐丹颖 郭俊清[1] 陈雄斌[1] 李洪磊[1] 陈弘达[1] 

机构地区：[1]中国科学院半导体研究所集成光电子学国家重点实验室,北京100083

出　　处：《半导体光电》2015年第1期106-109,共4页Semiconductor Optoelectronics

基　　金：国家"973"计划项目(2013CB329205);国家"863"计划项目(2011AA03A114;2013AA013602;2013AA013603;2013AA03A104)

摘　　要：基于白光发光二极管(LED)能够被高速调制的特性,制作了室内半导体照明的可见光音频通信系统。针对可见光音频系统涉及较大数据量传输的场景,在原有的半导体照明平衡编码技术基础上,提出了一种改良型的稳定照明编码方式,在保证输出连续、稳定0-1数据码流的同时,将编码效率提高了10%以上,减小了传输时长,降低了编码冗余度。An indoor white light audio communication system was established based on the characteristic of white light emitting diode of being able to be modulated at a high speed. Considering the large amount of data being transmitted in visible-light audio communication system, an improved light intensity stabilization coding technique was proposed based on the initial white light balance coding technique. The new balance coding technique can lower the coding redundancy and shorten the transmission time except for the ability of transmitting continuous, steady and 0-1 balanced data stream.

关 键 词：光通信 可见光音频通信 平衡编码 编码效率 白光发光二极管 

分 类 号：TN929.12[电子电信—通信与信息系统]