Time-Delay Measurement Techniques for Time Transfer over Optical Fibers

被引：2

作者：

Zhou Xu ^{[1
,2
,3
]}

Chen Faxi ^{[1
,2
]}

Zhao Kan ^{[1
,2
]}

Liu Tao ^{[1
,2
]}

Zhang Shougang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Shaanxi, Peoples R China

[2] Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Stand, Xian 710600, Shaanxi, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

LASER & OPTOELECTRONICS PROGRESS | 2018年 / 55卷 / 08期

关键词：

measurement; fiber-optic link; time transfer over optical fibers; time-delay measurement;

D O I：

10.3788/LOP55.081201

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：

In order to meet the engineering requirements of long haul time transfer over optical fibers, a time-delay measurement method based on the time digital conversion (TDC) and the field programmable gate array (FPGA) is proposed. This method combines the characteristics of a large measurement range for FPGA and a high resolution for TDC, and thus an optical fiber time-delay measurement with a high resolution in a wide range is realized. The research results show that the measurement range of this system is 0-1 s, the resolution is 22 ps, and the uncertainty degree is superior to 100 ps.

引用

页数：6

共 17 条

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