一种用于空间光学频率信号稳定度评估的微波双向测量系统  

A Microwave Bidirectional Measurement System for Evaluating the Stability of Spatial Optical Frequency Signal

作　　者：高帅和 张首刚[1] 潘志兵 宋坤 岳耀笠[3] 刘禹圻 张浩 王沛[1] 郭燕铭 GAO Shuai-he;ZHANG Shou-gang;PAN Zhi-bing;SONG Kun;YUE Yao-li;LIU Yu-qi;ZHANG Hao;WANG Pei;GUO Yan-ming(National Time Service Center,Chinese Academy of Sciences,Xi’an,Shaanxi 710000,China;The 29th Research Institute of China Electronics Technology Group Corporation,Chengdu,Sichuan 610036,China;The 34th Research Institute of China Electronics Technology Group Corporation,Guilin,Guangxi 541004,China;The 44th Research Institute of China Electronics Technology Group Corporation,Chongqing 400060,China)

机构地区：[1]中国科学院国家授时中心,陕西西安710600 [2]中国电子科技集团公司第29研究所,四川成都610036 [3]中国电子科技集团公司第34研究所,广西桂林541004 [4]中国电子科技集团公司第44研究所,重庆400060

出　　处：《电子学报》2023年第8期2043-2049,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.11873009);中国科学院西部引进人才项目(No.E016YR1R);陕西省高层次人才项目(No.E039SB1K)。

摘　　要：针对星地复杂环境下空间光学频率信号稳定度评估的需求,设计基于微波时频传递链路的双向时差测量系统.利用内置激光器对光学频率信号光纤传递链路进行相位漂移检测并补偿,控制光频信号传输时延;基于马赫-曾德尔干涉仪结构进行光学本振合成,提高射频信号质量;通过分时复用实现对通道载波多普勒频率牵引和相位跟踪,实现高精度测量.地面测试结果表明该系统可实现测量系统附加频率稳定度5.07×10^(-14)s/1 s,5.31×10^(-16)s/300 s,2.36×10^(-17)s/1×10^(4)s,7.46×10^(-18)s/8.64×10^(4)s.According to the requirements of frequency stability evaluation of spatial optical signal in satellite-ground environment,a two-way time differences of arrival(TDOA)measurement system based on microwave link is designed.The built-in laser is used to detect and compensate the phase drift of optical frequency transmission fiber,so as to control the transmission delay of optical frequency signal.The optical local oscillator is synthesized based on the structure of Mach-Zehnder interferometer(MZI)to improve the quality of radio frequency signal.The Doppler frequency traction and phase tracking of channel carrier are realized through time-sharing multiplexing to obtain high-precision measurement.The test results show that the designed measurement system can realize the level of additional frequency stability at 5.07×10^(-14)s/1 s,5.31×10^(-16)s/300 s,2.36×10^(-17)s/1×10^(4)s,7.46×10^(-18)s/8.64×10^(4)s.

关 键 词：微波时频传递 时差测量 光纤相位补偿 马赫-曾德尔干涉仪 

分 类 号：TN925[电子电信—通信与信息系统] P19[电子电信—信息与通信工程] V19[天文地球—天文学]