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[1]张雪岩,吴 舜*. 基于级联被动补偿模块的微波频率信号传递方法 [J].武汉工程大学学报,2025,47(04):442-447.[doi:10.19843/j.cnki.CN42-1779/TQ.202407020]
　ZHANG Xueyan,WU Shun*.A microwave frequency signal transmission method based on cascaded passive compensation module[J].Journal of Wuhan Institute of Technology,2025,47(04):442-447.[doi:10.19843/j.cnki.CN42-1779/TQ.202407020]
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基于级联被动补偿模块的微波频率信号传递方法
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
47
期数:
2025年04期
页码:
442-447
栏目:
智能制造
出版日期:
2025-08-29

文章信息/Info

Title:
A microwave frequency signal transmission method based on cascaded passive compensation module
文章编号:
1674 - 2869（2025）04- 0442 - 06
作者:
光学信息与模式识别湖北省重点实验室（武汉工程大学），湖北 武汉 430205
Author(s):
Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
Keywords:
分类号:
TN24
DOI:
10.19843/j.cnki.CN42-1779/TQ.202407020
文献标志码:
A
摘要:
针对长距离光纤链路微波频率传递过程中出现的补偿带宽限制、结构复杂和成本高等问题，提出了一种基于级联被动补偿模块实现长距离微波频率信号传递的方法。通过光往返传递提取光纤链路相位噪声，利用级联被动补偿模块得到相位噪声预补偿信号，对经过预补偿的微波频率信号进行级联传递，最终实现微波频率信号的长距离传递。在(100+100) km两级级联光纤链路中，传输6.4 GHz微波频率信号的仿真结果表明，采样时间为1和1 000 s时，信号的频率传输稳定度分别为1.35×10-14和1.24×10-17。该结果比直接传递的频率传输稳定度提高了3.9倍。多级级联被动补偿的理论计算结果表明，相邻级联间频率传输稳定度呈现[N+1/N]倍的关系，其中N为级联的总级数。本文提出的级联被动补偿模块具有结构简单、补偿速度快和鲁棒性等特点，可以在光纤链路中多级添加，为长距离微波频率信号传递提供了便利和理论指导。
Abstract:
A method based on cascaded passive compensation modules for implementing long-distance microwave frequency signal transmission was proposed to address the problems of compensation bandwidth limitation, complex structure, and high cost that occur during microwave frequency transmission over long-distance fiber-optic links. The phase noise of the fiber-optic link was extracted through optical round-trip transmission, and a phase noise pre-compensation signal was obtained using the cascaded passive compensation module. The pre-compensated microwave frequency signal was cascaded for transmission, ultimately achieving its long-distance transmission. Simulation results of a 6.4 GHz microwave frequency signal transmitted over a two-stage cascaded fiber link of 100 km+100 km indicated that the frequency transmission stability is 1.35×10-14 and 1.24×10-17 at sampling times of 1 and 1 000 s, respectively, which means this method improves the frequency transmission stability by 3.9 times compared to direct transmission. Theoretical calculations of multistage cascaded passive compensation revealed that the proportional relationship of frequency transmission stability between adjacent cascades is [N+1/N], where N is the total number of stages in the cascades. The proposed module has the characteristics of simple structure, fast compensation speed, and robustness, which can be added at multiple stages in the fiber link, providing convenience and theoretical guidance for long-distance microwave frequency signal transmission.

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备注/Memo

备注/Memo:
收稿日期：2024-07-22
基金项目：武汉工程大学校内基金（22QD01）
作者简介：张雪岩，硕士研究生。Email：1577859358@qq.com
*通信作者：吴 舜，博士，特聘教授。Email：wushun@wit.edu.cn
引文格式：张雪岩，吴舜. 基于级联被动补偿模块的微波频率信号传递方法［J］. 武汉工程大学学报，2025，47（4）：442-447.
更新日期/Last Update: 2025-08-29