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Detection of hydroacoustic signals on a fiber-optic submarine cable
Matsumoto, H.; Araki, E.; Kimura, T.; Fujie, G.; Shiraishi, K.; Tonegawa, T.; Obana, K.; Arai, R.; Kaiho, Y.; Nakamura, Y.; Yokobiki, T.; Kodaira, S.; Takahashi, N.; Ellwood, R.; Yartsev, V.; Karrenbach, M. (2021). Detection of hydroacoustic signals on a fiber-optic submarine cable. NPG Scientific Reports 11(1): 2797.
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
Peer reviewed article  

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  • Matsumoto, H.
  • Araki, E.
  • Kimura, T.
  • Fujie, G.
  • Shiraishi, K.
  • Tonegawa, T.
  • Obana, K.
  • Arai, R.
  • Kaiho, Y.
  • Nakamura, Y.
  • Yokobiki, T.
  • Kodaira, S.
  • Takahashi, N.
  • Ellwood, R.
  • Yartsev, V.
  • Karrenbach, M.

    A ship-based seismic survey was conducted close to a fiber-optic submarine cable, and 50 km-long distributed acoustic sensing (DAS) recordings with air-gun shots were obtained for the first time. We examine the acquired DAS dataset together with the co-located hydrophones to investigate the detection capability of underwater acoustic (hydroacoustic) signals. Here, we show the hydroacoustic signals identified by the DAS measurement characterizing in frequency-time space. The DAS measurement can be sensitive for hydroacoustic signals in a frequency range from

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