Archives of Acoustics, 45, 2, pp. 349–357, 2020
10.24425/aoa.2020.133155

Underwater Noises of Open-Circuit Scuba Diver

Vladimir KORENBAUM
V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences
Russian Federation

Anatoly KOSTIV
V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences
Russian Federation

Sergey GOROVOY
1) V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences 2) Engineering School, Far Eastern Federal University
Russian Federation

Veniamin DOROZHKO
V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences
Russian Federation

Anton SHIRYAEV
V.I. Il’ichev Pacific Oceanological Institute, Far Eastern Branch Russian Academy of Sciences
Russian Federation

The features of respiratory noises and noises of fins for open-circuit scuba divers, indicating a multipole character of noises emission, are specified in cameral conditions. It demonstrates a possibility to detect low-frequency components of noises of fins with pressure gradient sensor in near field. A possibility of estimating the respiratory rate of an open-circuit scuba diver is demonstrated at distances up to 100 m in real sea. It gives an opportunity of estimating the bearing (time delay in a pair of hydrophones) for the open-circuit scuba diver by respiratory noises at distances up to 150 m in real sea. Thus, low-frequency underwater noises of open-circuit scuba divers may be successfully applied to monitor the safety of diving and to prevent waterside intrusion by trespassers.
Keywords: underwater acoustics; diver; respiratory noises; noises of fins; open-circuit scuba; breathing apparatus; detection; monitoring; bearing
Full Text: PDF

References

Bogorodskiy V.V., Zubarev L.A., Korepin Ye.A., Yakushev V.I. (1983), Underwater electroacoustic transducers. Manual [in Russian], Sudostroyeniye, St. Petersburg, pp. 91.

Donskoy D., Sedunov N., Tsionskiy M. (2008), Variability of SCUBA diver’s acoustic emission, Proceedings of SPIE, Optics and Photonics in Global Homeland Security IV, C.S. Halvorson, D. Lehrfeld, T.T. Saito [Eds], 6945, 694515–694515–11, doi: 10.1117/12.783500.

Gemba K.L., Nosal E.-M., Reed T.R. (2014), Partial dereverberation used to characterize open circuit scuba diver signatures, Journal of Acoustic Society of America, 136(2): 623–633, doi: 10.1121/1.4884879.

Gorovoy S. et al. (2014), A possibility to use respiratory noises for diver detection and monitoring physiologic status, Proceedings of Meetings on Acoustics (POMA), 21: 070007, doi: 10.1121/1.4893767.

Korenbaum V.I., Tagiltsev A.A. (2012), Flow noise of an underwater vector sensor embedded in a flexible towed array, Journal of Acoustic Society of America, 131(5): 3755–3762, doi: 10.1121/1.3693647.

Korenbaum V.I. et al. (2016), The possibility of passive acoustic monitoring of a scuba diver, Doklady Earth Sciences, 466(2): 187–190, doi: 10.1134/S1028334X16020136.

Korenbaum V.I., Tagiltsev A.A., Gorovoi S.V., Kostiv A.E., Shiryaev A.D. (2017), Low-frequency inertial-type pressure-gradient receivers for oceanological investigations, Instruments and Experimental Techniques, 60(4): 600–604, doi: 10.1134/S00204412 17040066.

Lohrasbipeydeh H., Dakin T., Gulliver T.A., De Grasse C. (2014), Passive energy based acoustic signal analysis for diver detection, Proceedings OCEANS 2014, St John’s, doi: 10.1109/OCEANS.2014.7003266.

Skouchek E. (1976), Principles of Acoustics, Part 2 [in Russian], Mir, Moscow, pp. 105–133.

Sutin A., Salloum H., Delorme M., Sedunov N., Sedunov A., Tsionskiy M. (2013), Stevens passive acoustic system for surface and underwater threat detection, IEEE International Conference on Technologies for Homeland Security, HST 2013, art. no. 6698999, pp. 195–200, doi: 10.1109/THS.2013.6698999.

Wenz G.M. (1962), Acoustic ambient noise in the ocean: spectra and sources, Journal of Acoustic Society of America, 34(12): 1936–1956, doi: 10.1121/1.1909155.




DOI: 10.24425/aoa.2020.133155

Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN)