Faculty of Physics
M.V.Lomonosov Moscow State University
Regular Article

Estimation of efficiency of the vertical antenna arrays in underwater sound channels

M.S. Labutina$^1$ , A.I. Malekhanov$^{1,2}$, A.V. Smirnov$^2$

Memoirs of the Faculty of Physics 2015. N 4.

  • Article

In this paper it is investigated the gain of the vertical antenna array which is situated in a randomly inhomogeneous underwater sound channel. The model of the received on the array signal is defined as the superposition of normal waves with specified spectrum of wave numbers and with random amplitudes. The radius of mutual correlations of modes is depended on the distance of signal propagation. The amplitude-phase distribution, defined on the antenna array, was allowed us to adapt to any of the propagating modes. In addition, it is considered two different types of ocean noise, namely, the model of noise with continuous and discrete-mode spectrum. As a result it is analyzed the dependence of response of the vertical antenna array on such following parameters as: the spectrum of modes intensities of signal, the range of the wave numbers and the scale of cross-modal correlations.

43.30.+m Underwater sound
92.10.-c Physical oceanography
M.S. Labutina$^1$ , A.I. Malekhanov$^{1,2}$, A.V. Smirnov$^2$
$^1$ Lobachevsky State University of Nizhny Novgorod, 23 Gagarin avenue, Nizhny Novgorod, 603950, Russia.
$^2$ Institute of Applied Physics of the Russian Academy of Science, 46 Ul'yanov Street Nizhny Novgorod, 603950, Russia.
Issue 4, 2015

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