Abstract
Using numerical simulation, an analysis was conducted of the interference structure of a bottomscattered sound field generated by a wideband point source in shallow water under winter and summer conditions. The scattered signals were received from the place where the source was located and were subjected to Fourier transform with a sliding window. The paper demonstrates the possibility of estimating the waveguide invariant for backscattered signals when processing the sound intensity distributions in wide frequency and distance ranges up to the scattering area. A technique is proposed for reconstructing the twodimensional field of internal waves using variations of the interference pattern of reverberation signals. The influence of wind surface waves on the degree of interference band contrast is illustrated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
W. H. Munk, P. Worcester, and C. Wunsch, Ocean Acoustic Tomography (University Press, Cambridge, 1995).
V. A. Burov, A. V. Grinyuk, V. N. Kravchenko, P. Yu. Mukhanov, S. N. Sergeev, and A. S. Shurup, Acoust. Phys. 60, 647 (2014).
B. G. Katsnelson, V. G. Petnikov, and J. F. Lynch, Fundamentals of Shallow Water Acoustics (Springer—Verlag, 2011).
A. V. Bunchuk and Yu. Yu. Zhitkovskii, Sov. Phys.— Acoust. (USA) 26, 363 (1980).
N. C. Makris, L. Z. Avelino, and R. Menis, J. Acoust. Soc. Am. 97, 3547 (1995).
N. C. Makris, S. Jagannothan, and A. Ignisca, Oceanography 23, 204 (2010).
Ch. Holland, J. Acoust. Soc. Am. 119, 1373 (2006).
D. E. Weston and P. D. Hocking, J. Acoust. Soc. Am. 87, 639 (1990).
K. LePage, J. Acoust. Soc. Am. 106, 3240 (1999).
V. A. Grigor’ev, V. M. Kuz’kin, and V. G. Petnikov, Acoust. Phys. 50, 37 (2004).
R. Goldhahn, G. Hickman, and J. Krolik, J. Acoust. Soc. Am. 124, 2841 (2008).
F. H. Li, Y. J. Zhang, R. H. Zhang, and J. J. Liu, Science Chin. Phys. Mechan. Astron. 53, 1408 (2010).
S. D. Chuprov, in Acoustics of Ocean Ed. by L. M. Brekhovskikh and I. B. Andreeva, (Nauka, Moscow, 1982) [in Russian].
V. M. Kuz’kin, I.-T. Lin, A. A. Lun’kov, J. F. Linch, and V. G. Petnikov, Acoust. Phys. 57, 381 (2011).
V. A. Gordienko, Vector–Phase Methods in Acoustics (Fizmatlit, Moscow, 2007) [in Russian].
W. M. Carey, J. Acoust. Soc. Am. 104, 831 (1998).
T. F. Duda, J. M. Collis, Y.-T. Lin, A. E. Newhall, J. F. Lynch, and H. A. de Ferrari, J. Acoust. Soc. Am. 131, 1782 (2012).
J. Max, J.-C. Carre, and F. Peltje, Methodes et techniques de traitement du signal et applications aux mesures physiques. Tome 1. Principes generaux et methodes classiques, (1981; Mir, Moscow, 1983).
W. J. Pearson, G. Neumann, and R. W. James, Practical Method for Observing and Forecasting Ocean Waves by Means of Wave Spectra and Statistics, (US Navy Hydr., 1955), vol. 284.
D. Rouseff, Waves Random Media 11, 377 (2001).
G. L. Spain and W. A. Kuperman, J. Acoust. Soc. Am. 106, 2454 (1999).
L. A. Brooks, M. R. F. Kidner, A. C. Zander, C. H. Hansen, and Z. Y. Zhang, Techniques for extraction of the waveguide invariant from interference patterns in spectrograms, Proc. Acoustics, Christchurch, New Zealand, 2006.
V. M. Kuz’kin, M. V. Kutsov, and S. A. Pereselkov, Acoust. Phys. 59, 686 (2013).
V. M. Kuz’kin, M. V. Kutsov, and S. A. Pereselkov, Acoust. Phys. 60, 405 (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.A. Lunkov, 2015, published in Akusticheskii Zhurnal, 2015, Vol. 61, No. 5, pp. 596–604.
Rights and permissions
About this article
Cite this article
Lunkov, A.A. Interference structure of low-frequency reverberation signals in shallow water. Acoust. Phys. 61, 547–555 (2015). https://doi.org/10.1134/S1063771015040065
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063771015040065