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Appl. Sci. 2018, 8(1), 142; doi:10.3390/app8010142

Variability of Hydroacoustic Noise Probability Density Function at the Output of Automatic Gain Control System

Department of Instrument Engineering, Far Eastern Federal University, 690650 Vladivostk, Russia
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Received: 28 October 2017 / Revised: 20 December 2017 / Accepted: 9 January 2018 / Published: 20 January 2018
(This article belongs to the Special Issue Underwater Acoustics, Communications and Information Processing)
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Abstract

This research presents results of the estimation of temporal variability of the hydroacoustic noise probability density function (PDF) in shallow waters within the frequency band of 0.03–3.3 kHz; the studies were conducted near the Primorsky Aquarium on Russky Island, Vladivostok, Russia. Signals were received via unidirectional hydrophone and automatic gain control of the received signals. The hydrophone was attached to a drifting buoy via an elastic suspension; the received signals were transmitted by cable to a boat drifting with the buoy. The results of the comparison of the sea noise probability density function (PDF) estimates at the output of a system with automatic gain control (AGC) with similar results for a white Gaussian noise in the same frequency band are described. View Full-Text
Keywords: hydroacoustic communication; hydroacoustic noise; nonstationarity; automatic gain control hydroacoustic communication; hydroacoustic noise; nonstationarity; automatic gain control
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Gorovoy, S.; Kiryanov, A.; Zheldak, E. Variability of Hydroacoustic Noise Probability Density Function at the Output of Automatic Gain Control System. Appl. Sci. 2018, 8, 142.

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