白光LED通信系统的噪声与干扰分析  

Analysis and solution on noise and interference of white light LED communication system

作　　者：赵惠珊[1,2] 陈长缨[1,2] 陈曦[3] 傅倩[1,2] 洪岳[1,2] 骆宏图[1,2] 莫晨晓[1,2] 

机构地区：[1]光电信息与传感技术广东省普通高校重点实验室(暨南大学),广州510632 [2]暨南大学光电工程系,广州510632 [3]中国电信广州无线网络运营中心,广州510632

出　　处：《光通信技术》2011年第1期60-62,共3页Optical Communication Technology

基　　金：中央高校基本科研业务费专项资金(暨11609506)资助

摘　　要：阐述了背景可见光在噪声受限与干扰受限的白光LED通信系统中的影响。利用带通滤波器和光学设计以及噪声匹配等方法提高了作为噪声受限系统的接收机性能;采取带阻滤波器、副载波调制、增设滤波电容等措施,很好地抑制了干扰源对干扰受限系统的影响;提出了基于噪声与干扰双受限的白光LED通信接收机设计方案,根据该方案设计的白光LED通信系统已投入使用。The influence on white light LED communication system whose performance is limited by noise and interference produced by background visible light is showed in this paper.The reception performance in noise-limited system is improved by band-pass filter,optical design and noise-matching and the effect on interference-limited system is declined with band elimination filter,subcarrier modulation and filtering capacitance.Therefore,a receiver design of white light LED communication based on noise-limited and interference-limited is proposed,the white light LED communication according which is put into use.

关 键 词：白光LED通信 噪声受限系统 干扰受限系统 

分 类 号：TN365[电子电信—物理电子学]