摘要
针对卫星导航系统对高稳定、远距离频率信号传递需求,对光纤频率传递技术原理进行了简要介绍,设计了基于电子相位补偿原理的光纤频率传递系统,并进行了实验验证。实验结果表明,通过单纤双向往返传输的相位补偿方案,实现了100 km光纤频率传递链路相位噪声的实时补偿,频率稳定度为1.13×10-14@1 s,2.19×10-17@104 s,抵消了光纤链路所处环境温度变化引入的附加相位噪声。
In view of the requirements of satellite navigation system for remote high-stability frequency signal transfer,the principle of frequency transfer through optical fiber is introduced briefly,and the frequency transfer system through optical fiber based on electronic phase compensation principle is designed.The experiment is performed for demonstration,and the results that the phase compensation scheme of single-fiber bidirectional transmission can be used to implement the real-time compensation of phase noise of 100 km fiber frequency transmission link,and the frequency stability of 1.13×10^-14@1 s and 2.19×10^-17@104 s,which offsets the additional phase noise introduced by the environmental temperature changes of the optical fiber link.
作者
王正勇
蔚保国
尹继凯
王崇阳
WANG Zhengyong;YU Baoguo;YIN Jikai;WANG Chongyang(State Key Laboratory of Satellite Navigation System and Equipment Technology, Shijiazhuang 050081, China)
出处
《无线电工程》
2019年第8期670-673,共4页
Radio Engineering
基金
国家自然科学基金资助项目(91638203)
关键词
频率传递
电子相位补偿
相位噪声补偿
光纤链路
frequency transfer
electronic phase compensation
phase noise compensation
optical fiber link
