摘要
为了提高紫外光通信系统的通信距离,提出了基于紫外激光器的通信系统;利用光电倍增管作为光电探测器,采用循环冗余校验(CRC)进行编码,并对传统FSK调制方式进行了改进;搭建了紫外激光通信系统实验平台,对实验结果进行分析,讨论了通信距离对误码率的影响;最终在白天通信距离150 m和夜晚220 m的范围内,实现了传输速率为0.6 kb/s,误码率低于10-5的紫外激光通信系统。
In order to enlarge communication distance of ultraviolet communication system, an ultraviolet laser based communication system is proposed by taking the advantage of photomultiplier tube as optoelectric detector and by taking cyclic redundancy check （CRC） as encoding method, and the conventional FSK modulation is improved. Experiment results are analyzed by setting up experiment platform of ultraviolet laser communication system, the impact of communication distance on error encoding rate is discussed, and finally the ultraviolet laser communication system with transfer rate 0.6kb/s and with less than 10.5 error encoding rate is implemented in the range of 150m communication distance in day time and 220m communication distance at the night.
出处
《重庆工商大学学报（自然科学版）》
2014年第7期46-49,55,共5页
Journal of Chongqing Technology and Business University:Natural Science Edition
基金
国家自然科学基金项目(11075226)
中央高校基金(CDJZR10120009)资助课题
关键词
紫外光通信
紫外激光器
光电倍增管
FSK调制
ultraviolet communication
ultraviolet laser
photomultiplier tube
FSK modulation
