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Fiber-optic distributed acoustic sensors (DAS) and applications in railway perimeter security

机译:光纤分布式声传感器(DAS)及其在铁路周界安全中的应用

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摘要

The paper introduces the DAS system based on advanced phase-sensitive optical time domain reflectometry (φ-OTDR) with fading noise suppressed. Besides, the DAS system based on time-gated digital optical frequency domain reflectometry (TGD-OFDR) and its improved systems are introduced. The application of DAS in railway perimeter security is introduced at the end of the paper.
机译:本文介绍了基于先进的相位敏感光时域反射仪(φ-OTDR)且具有抑制衰落噪声的DAS系统。此外,介绍了基于时间门控数字光频域反射法(TGD-OFDR)的DAS系统及其改进系统。最后介绍了DAS在铁路周界安全中的应用。

著录项

  • 来源
    《Advanced sensor systems and applications VIII》|2018年|1082102.1-1082102.6|共6页
  • 会议地点 Beijing(CN)
  • 作者单位

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

    State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, China 200240;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    DAS; Rayleigh backscattering; φ-OTDR; TGD-OFDR; fading noise; railway security;

    机译:DAS;瑞利反向散射; φ-OTDR; TGD-OFDR;衰落的噪音铁路安全;
  • 入库时间 2022-08-26 14:32:20

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