Increase demodulation rate of optical fiber distribution acoustic sensing

Yixuan Wang; Junfeng Jiang; Kun Liu; Shuang Wang; Zhenyang Ding; Tianhua Xu; Tiegen Liu

doi:10.1117/12.2616538

26 July 2022 Increase demodulation rate of optical fiber distribution acoustic sensing

Yixuan Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Zhenyang Ding, Tianhua Xu, Tiegen Liu

Proceedings Volume 12279, 2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 1227909 (2022) https://doi.org/10.1117/12.2616538
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

Distributed acoustic sensing technology has a wide range of applications such as seismology, mineral exploration, and so on. For practical application needs, we contributed to increase demodulation rate of optical fiber distribution acoustic sensing system. Aiming at the problem of large volume of signal acquisition data and long demodulation time, we proposed to apply a hardware circuit as a part of data acquisition system. We also applied a GPU-based fast processing algorithm to realize simultaneous calculation of different units. Through the combination of hardware and software, the fast signal demodulation based on low sampling rate was successfully realized.

Citation Download Citation

Yixuan Wang, Junfeng Jiang, Kun Liu, Shuang Wang, Zhenyang Ding, Tianhua Xu, and Tiegen Liu "Increase demodulation rate of optical fiber distribution acoustic sensing", Proc. SPIE 12279, 2021 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 1227909 (26 July 2022); https://doi.org/10.1117/12.2616538

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