高精度光纤微波时频传递技术

High-precision Optical Fiber Microwave Time-frequency Transfer Technology

光纤微波时频传递技术具备高可靠性、高稳定性、高精度以及低损耗等优点,能够为航空航天、国防建设、高速通信行业等提供高精度的时间频率参考基准。如何克服现有光纤时频传递技术中存在的时刻同步精度低、网络化和一体化技术不成熟等问题,同时还能保证系统在长距离传输时不会导致同步精度显著下降,成为光纤时频传输领域核心研究问题。综述了光纤微波时频传递研究领域的进展,从传统的时频传递技术切入,介绍了时频一体化传递新技术,并对光纤微波时频传递技术的应用前景进行了展望。

Optical fiber microwave time-frequency transfer technology has the advantages of high reliability,high stability,high precision,and low loss,it can provide a high-precision time-frequency reference for aerospace,national defense construction,high-speed communications and other industries.How to overcome the problems of low time synchronization accuracy,immature networking and integration technology in the existing technology,and at the same time ensure that the system will not cause a significant decrease in synchronization accuracy during long-distance transmission,becoming a core research issues in the field of optical fiber time-frequency transmission.The research progress of optical fiber microwave time-frequency transmission is reviewed,start from the traditional time transfer and frequency transfer technology,the new technology of integrated time-frequency transfer is introduced,finally,the application prospects of optical fiber microwave time-frequency transfer technology are prospected.