云南高校图书馆联盟文献共享服务平台- OTDR

OTDR: 作品数：717被引量：1336H指数：18; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：秦增光丛振华董永康张在宣刘兆军更多>>; 相关机构：电子科技大学北京邮电大学北京交通大学华北电力大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家高技术研究发展计划河北省自然科学基金高等学校学科创新引智计划更多>>

Method of extracting disturbed position in φ-OTDR based on signal relevance evaluation: 《Optoelectronics Letters》2024年第9期513-517,共5页LI Chengzhi YANG Yang LIU Lijun GAO Fei DU Xuan LIANG Hu; supported by the Research and Development of Natural Gas Pipeline Network and Station Intelligent Control System by China National Petroleum Corporation Limited (No.2021DJ7304);the National Natural Science Foundation of China (No.62105307)。; A theoretical analysis was conducted on the intrinsic bond between multi-point responses caused by the same single vibration in phase sensitive optical time-domain reflectometer(OTDR). Temporal similarity of signals c...; 关键词：OTDR SIGNAL disturbed

基于CNN的光传输网络中OTDR故障识别技术研究: 《电脑编程技巧与维护》2024年第7期174-176,共3页施盛江; 光时域反射计(OTDR)是光纤故障诊断的主要工具,将深度学习中的卷积神经网络(CNN)引入OTDR故障识别,以期实现智能化的故障诊断。介绍了OTDR的基本原理、常见的光纤故障类型及其特征。设计了一个由卷积层、池化层和全连接层组成的CNN模型...; 关键词：光时域反射计卷积神经网络故障识别智能诊断

基于知识图谱的分布式光纤振动传感技术现状与发展分析: 《数字技术与应用》2024年第6期181-184,共4页陈钻何国军刘翔荣玉杰; 分布式光纤振动传感技术是基于光时域反射(OTDR)技术的一种传感技术,而基于相位敏感型的光时域反射技术(Φ-OTDR)系统具有灵敏度高、抗腐蚀、抗电磁干扰等特性,而且Φ-OTDR系统定位精度高、成本较低、数据处理相对简单、监控距离长。因...; 关键词：分布式光纤振动传感光时域反射技术 OTDR 知识图谱相位敏感传感技术结构健康监测管道监测

Unleashing potentials with deep learning:decoding the complex events for distributed fiber optic sensing applications: 《Science China(Information Sciences)》2024年第5期333-334,共2页Yujiao LI Liqin HU Kuanglu YU; supported in part by National Key Research and Development Program of China(Grant No.2021YFB2900704);Fundamental Research Funds for Central Universities(Grant No.021314380211).; After decades of research,distributed fiber optic sensors have become essential tools for precise long-distance measurements.They are applied across various sectors such as railway transportation,gas and petroleum,and...; 关键词：FIBER OTDR PRECISE

光纤通信在远程电力监控系统中的关键应用: 《通信电源技术》2024年第10期139-141,共3页邓璐; 随着现代社会对电力系统稳定性和效率的要求日益提高,光纤通信技术在远程电力监控系统中的应用变得尤为关键。文章从光纤通信的基本原理出发,对比分析光纤与传统电缆的优势,并详细分析光纤在数据传输高效性、实时监控和故障检测等方面...; 关键词：光纤通信远程电力监控网络可靠性数据传输光时域反射仪(OTDR)

The cornerstone of fiber-optic distributed vibration/acoustic sensing: Ф-OTDR被引量：1: 《Opto-Electronic Advances》2023年第7期5-8,共4页Yunjiang Rao; Fiber-optic distributed vibration/acoustic sensing(DVS/DAS) technology achieves breakthrough performance and explores broad cornerstone industrial applications.; 关键词：CORNERS BREAKTHROUGH fiber

基于随机数编码的相位敏感光时域反射仪被引量：2: 《电子测量与仪器学报》2022年第9期125-131,共7页尹康王宇李沛峰苏玉文白清刘昕靳宝全; 国家自然科学基金(62175175);山西省基础研究计划(202103021222010);山西省基础研究计划(20210302124599);山西省重点研发计划(202102130501021)项目资助。; 相位敏感光时域反射仪(Ф-OTDR)的传感距离与空间分辨率相互制约,为进一步提升系统性能,提出了光脉冲随机数编码方法,分析了基于编码的相干探测Ф-OTDR的线性化理论,阐述了随机数编码与解码原理并推导了随机数编码的增益数学模型。实验...; 关键词：光纤传感 Ф-OTDR 传感距离随机数编码

Optical-pulse-coding phase-sensitive OTDR with mismatched filtering被引量：3: 《Science China(Information Sciences)》2022年第9期259-268,共10页Yongxin LIANG Zinan WANG Shengtao LIN Yuyao WANG Jialin JIANG Zijie QIU Chunye LIU Yunjiang RAO; supported by National Natural Science Foundation of China(Grant Nos.62075030,61731006);Sichuan Provincial Project for Outstanding Young Scholars in Science and Technology(Grant No.2020JDJQ0024);the 111 Project(Grant No.B14039)。; Optical-pulse-coding(OPC)phase-sensitive optical time-domain reflectometry(Φ-OTDR)sends a train of pulses into a fiber,and has high spatial resolution decided by the duration of a subpulse while achieving signal-to-n...; 关键词：mismatched filtering phase-sensitive optical time-domain reflectometry optical fiber sensing optical pulse coding least-squares criterion

Advances in phase-sensitive optical time-domain reflectometry被引量：15: 《Opto-Electronic Advances》2022年第3期25-52,I0001,共29页Shuaiqi Liu Feihong Yu Rui Hong Weijie Xu Liyang Shao Feng Wang; supported in part by the Startup Fund from Southern University of Science and Technology and Shenzhen government under Grant No.Y01236128;by the National Natural Science Foundation of China(NSFC)under Grant Nos.61627816 and 61975076;by the Qing Lan Project of Jiangsu Province。; Phase-sensitive optical time-domain reflectometry(Φ-OTDR)has attracted numerous attention due to its superior performance in detecting the weak perturbations along the fiber.Relying on the ultra-sensitivity of light ...; 关键词：optical fiber sensors Ф-OTDR phase demodulation application research

基于OTDR的光缆自动监测定位中减少盲区影响的智能测试方法被引量：3: 《广东通信技术》2022年第3期72-76,共5页王强房瑜丹; 传统的光缆自动监测系统中,由于OTDR对被监测光纤的测试参数是按照系统设定的初始固定参数对所监测的光缆进行检测,因此缺乏智能选择适合所测纤芯的测试脉宽的机制,从而产生了OTDR的检测定位盲区问题,其无法解决1000 M以内的光纤故障定...; 关键词：光缆自动监测 OTDR 模块自适应脉宽探测

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