Research Progress on Optical Fiber Time-Frequency Synchronization Technology

被引:13
|
作者
Liang Yifeng [1 ]
Xu Jiangning [1 ]
Wu Miao [1 ]
He Hongyang [1 ]
Jiang Pengfei [1 ]
机构
[1] Naval Univ Engn, Chinese Peoples Liberat Army, Coll Elect Engn, Wuhan 130033, Hubei, Peoples R China
关键词
optical fiber time-frequency synchronization; time transfer; time service; ground-based time-frequency network; RADIO-FREQUENCY; RF FREQUENCY; LINK; DISSEMINATION; COMPENSATION; DISTANCE; NETWORK;
D O I
10.3788/LOP57.050004
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Time-frequency synchronization technology based on optical fiber transmission has advantages of high accuracy, high stability and low loss. In recent years, optical fiber time-frequency synchronization technology developed rapidly, with the emergence of new methods, new technologies and new applications, and it has strong military application needs and civil promotion prospects too. It is extremely necessary to review its development status and objectively examine its future development trend. On the basis of defining the principle and technical characteristics of optical fiber time-frequency synchronization technology, the current status of optical fiber time synchronization, frequency synchronization and networked synchronization technologies arc introduced, the key points in the construction of ground-based time-frequency network arc proposed. The problem of restricting the practicality of optical fiber time-frequency synchronization technology is analyzed. It is considered that ultra-long-distance and high precision transmission on commercial networks is the difficulty of restricting optical fiber time-frequency synchronization technology and the key problem to be solved in the future research.
引用
收藏
页数:14
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