提高OTDR动态范围和空间分辨率的研究进展  

Research progress in improving the dynamic range and spatial resolution of OTDR

作　　者：尚秋峰[1] 郑国强[1] SHANG Qiufeng;ZHENG Guoqiang(North China Electric Power University,Baoding Hebei 071003,China)

机构地区：[1]华北电力大学(保定)电子与通信工程系,河北保定071003

出　　处：《光通信技术》2020年第3期13-16,共4页Optical Communication Technology

基　　金：河北省自然科学基金(E2019502179)资助;国家自然科学基金(61775057)资助。

摘　　要：动态范围和空间分辨率是光时域反射仪(OTDR)系统的关键指标。在阐述OTDR动态范围和空间分辨率相互关系的基础上,综述了现阶段提高OTDR动态范围和空间分辨率的新方法,包括脉冲编码调制法、OTDR信号处理算法、线性光学采样法和混沌光时域反射法,分别介绍了这些方法在国、内外的研究进展,并对提高OTDR动态范围和空间分辨率的前景进行了展望。Dynamic range and spatial resolution are the key indexes of optical time domain reflectometry(OTDR)system.On the basis of expounding the relationship between OTDR dynamic range and spatial resolution,this paper summarizes the new methods of improving OTDR dynamic range and spatial resolution at present,including pulse code modulation,OTDR signal processing algorithm,linear optical sampling method and chaotic optical time domain reflection method,introduces the research progress of these methods at home and abroad,and the future of improving OTDR dynamic range and spatial resolution is also prospected.

关 键 词：光时域反射仪 动态范围 空间分辨率 

分 类 号：TN256[电子电信—物理电子学]