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Distributed acoustic sensor based on improved minimum control recursive average algorithm

机译:分布式声学传感器基于改进的最小控制递归平均算法

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摘要

An optical fiber acoustic sensor based on the combination of generalized cross-correlation and improved minimum control recursive average algorithms is proposed. The sensing system consists of a double Sagnac interference structure that picks up acoustic signals along the sensing fiber. The improved minimum control recursive average algorithm is used to preprocess the acquired signal to improve the signal-to-noise ratio, then the time-delay information is obtained through the correlation operation on the processed signal, and the acoustic source is located through the time delay information. Experiments show that under the condition of high signal-to-noise ratio of the acquired signal, the accuracy of acoustic source localization can be improved.
机译:提出了一种基于广义互相关和改进的最小控制递归平均算法的光纤声学传感器。传感系统由双锯齿干涉结构组成,沿着传感光纤拾取声学信号。改进的最小控制递归平均算法用于预处理获取的信号以提高信噪比,然后通过处理信号上的相关操作获得时间延迟信息,并且声源位于时间延迟信息。实验表明,在所获取信号的高信噪比的条件下,可以提高声学源定位的精度。

著录项

  • 来源
    《Optical fiber technology》 |2019年第7期|125-131|共7页
  • 作者单位

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Phys & Optoelect Taiyuan 030024 Shanxi Peoples R China|Taiyuan Univ Technol Minist Educ & Shanxi Prov Key Lab Adv Transducers & Intelligent Control Sys Taiyuan 030024 Shanxi Peoples R China|State Key Lab Coal & CBM Comin Jincheng 048000 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Optical fiber acoustic sensor; IMCRA; Double Sagnac interferometer; Time delay estimation;

    机译:光纤声学传感器;IMCRA;双锯齿干涉仪;时间延迟估计;

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