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Distributed shape detection for an acoustic sensitive optical cable with DAS.

Boqi Chen, Zhaoyong Wang, Junqi Yang

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    |June 14, 2024
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    Summary
    This summary is machine-generated.

    This study introduces a novel method for distributed acoustic sensitive optical cable (ASOC) shape detection using distributed acoustic sensing (DAS). This breakthrough enables precise 3D localization for underwater monitoring applications.

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    Area of Science:

    • Oceanography
    • Acoustics
    • Optical Engineering

    Background:

    • Acoustic sensitive optical cables (ASOCs) are crucial for underwater acoustic monitoring.
    • Accurate shape detection of ASOCs is essential for various marine applications.
    • Existing methods have limitations in distributed shape detection accuracy.

    Purpose of the Study:

    • To demonstrate a distributed ASOC shape detection method using distributed acoustic sensing (DAS) technology.
    • To achieve accurate three-dimensional (3D) localization of ASOC units.
    • To establish a new benchmark for ASOC shape detection performance.

    Main Methods:

    • Utilized distributed acoustic sensing (DAS) technology for ASOC shape detection.
    • Employed an adaptive peak allocation algorithm to determine the 3D position of ASOC units.
    • Integrated prior position information from auxiliary acoustic sources.

    Main Results:

    • Successfully demonstrated distributed ASOC shape detection using DAS.
    • Achieved accurate 3D localization of ASOC units.
    • Reported a preliminary error of 6.53 cm in shape detection.

    Conclusions:

    • This work presents the first known achievement of distributed ASOC shape detection with DAS.
    • The developed method significantly advances ASOC applications.
    • Potential applications include enhanced underwater target detection and towed array correction.