一种抑制同址干扰的射频光传输链路  

A Radio over Fiber Link for Radio Co-Site Interference Mitigation

作　　者：范浩 袁露 

机构地区：[1]中国电子科技集团公司第三十四研究所,广西桂林541004 [2]桂林联勤保障中心,广西桂林541004

出　　处：《大众科技》2020年第3期4-6,共3页Popular Science & Technology

摘　　要：近年来,通信系统日益集成化、小型化、高速化,系统中信号的同址干扰成为影响通信质量的关键因素。为解决这一难题,文章基于微波光子技术,提出了一种射频光传输(ROF)链路,将射频干扰信号放在光域处理,通过链路中构建特定的并联调制结构,使调制到光载波上的两路干扰信号干涉相消,最终实现了超过60dB的干扰信号抑制,并且具有光域固有的大带宽、低损耗等优势。In recent years,the communication system becomes more and more integrated,miniaturized and high-speed.Thus,the co-site interference becomes a key factor affecting the communication quality.To solve the problem,a kind of the radio over fiber(ROF)link is proposed based on the microwave photonic technology in this paper.The radio frequency interference signal is put into the optical domain for processing,by building specific parallel modulation link structure,make to the two interference signals in the optical carrier modulation interference cancellation,finally achieved more than 60 dB signal suppression of interference,and it has a light domain inherent advantages of the high bandwidth and low loss.

关 键 词：同址干扰 射频光传输 并联极化调制 

分 类 号：TN929.1[电子电信—通信与信息系统]