HYDROACOUSTICS
ANNUAL JOURNAL
START NEW VOL 19 SEARCH STATISTICS PAS - GDANSK DIVISION

Signal conditioning for examination of shallow-water acoustic noise correlation properties

pp. 335-340, vol. 19, 2016

Mariusz Rudnicki
Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Poland

Jacek Marszal
Gdansk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Poland

Key words: underwater acoustics; ambient noise; noise envelope; tetrahedral antenna

Abstract: The article describes the process of signal conditioning for examination of acoustic noise correlation properties in shallow water. Knowledge of these properties is very important for the design processes of passive and active hydroacoustic systems. This paper focuses on the above issue from the point of view of passive sonar. In sonar systems, signal processing algorithms operate on both useful acoustic signals, and accompanying noise. Quantitative estimation of the correlation properties of acoustic noise enables an accurate determination of detection conditions. This will verify the validity of certain commonly used simplified models in simulations of hydroacoustic systems. The article presents how the measurement system was constructed, and the structure of files for storing measurement data. It describes the processing algorithm developed for the measured signal conditioning. Research results are presented and discussed.

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© Polish Acoustical Society - Gdansk Department, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported. (CC BY-NC-SA 3.0)