中文摘要：

面向航天探测等应用中对时频同步的需求,针对传统时频传输方法精度不足的问题,提出了一种基于光纤色散时延调控的时频传递系统。分析了利用不同光载波波长产生不同色散时延的方法,来补偿光纤信道由于环境因素的变化产生的时延随机抖动的原理。设计了多个频率传输实验,实验结果表明,该系统可以获得6.5×10-14@1 s和2.1×10-17@104s的频率稳定度。该时频传递技术已成功应用于“嫦娥三号”精密测定轨试验和北斗导航卫星连线干涉测量系统。

英文摘要：

A time and frequency transmission technique based on dispersion induced delay of optical fiber link has been proposed to meet the strict synchronization requirements in applications such as aerospace measurement.The principle of the transmission system has been analyzed.Several experiments have been carried out with frequency stability of 6.5×10-14 at 1 s and 2.1×10-17 at 104 s,respec-tively.The transmission system has been used in a lunar radio measurement of the Chang’E-3 spacecraft and a connected element inter-ferometry system.