光通信技术2025，Vol.49Issue(5)：63-66,4.DOI:10.13921/j.cnki.issn1002-5561.2025.05.011
相位噪声消除的雷达信号长距离光纤链路稳定传输
Stable transmission of radar signal over long distance optical fiber link with phase noise cancellation
摘要
Abstract
Phased array radar systems are designed with the core objectives of achieving large instantaneous bandwidth,robust anti-jamming capabilities,high precision,and flexible distribution,among which signal phase stability serves as a key metric for evaluating their accuracy.To ensure phase stability during long-distance signal transmission,a phase-stable transmission method for radar signals over long-haul fiber links with phase noise cancellation is proposed.This method effectively sup-presses and eliminates phase noise through a negative feedback phase compensation technique,thereby enabling high-stability signal output at the remote node.Experimental results demonstrate that,over a 200 km single-mode fiber link,the proposed method supports a signal bandwidth of 10～20 GHz and achieves a 360° phase shift.Within an average measurement time of 1 000 seconds,the system Allan deviation is as low as approximately 7.65×10-17,with a root-mean-square jitter delay of less than 0.39 ps.关键词
微波光子学/光纤链路/反馈补偿/相位噪声消除/精度Key words
microwave photonics/optical fiber link/feedback compensation/phase noise cancellation/accuracy分类
信息技术与安全科学引用本文复制引用
翟文胜,李新,辛运霞,李兴旺,翟秀丽,朱安福,李亚萍,陈黎霞,关娜,阎宽..相位噪声消除的雷达信号长距离光纤链路稳定传输[J].光通信技术,2025,49(5):63-66,4.基金项目
河南省自然基金面上项目(242300420288)资助 （242300420288）
河南省高校重点科研项目(13B510401)资助. （13B510401）
