Purpose of this article is to present designed and made linear hydrophone array and the results obtained during in situ trails on Gulf of Gdańsk. The measuring system allowed to localize hydrophones in the selected points and perform measurements in both the horizontal antenna positioning and vertical. Made in this way recordings allow creating accurate 3D imaging of sound intensity/propagation. During research three floating objects were measured: small ship (18 m long), yacht (12 m long) and 5 m pontoon with engine and paddles used to drive. In the article, accurately will be described the entire measurement system and complementary devices (navigation system, sound speed profiler, online underwater monitoring to control linear antenna position) and procedures used during in situ measurement circuit check and calibration using Lubell Underwater Speaker with amplifier and connected generator with set of reference signals. Characteristic arrangement of sensors allows use of hyperbolic navigation algorithms which results will be presented with an emphasis on measurements when the unit performed circulation around the measurement system. Furthermore, some spectrograms, cross correlations and frequency classification dependence of the speed using a prepared script in Matlab programing environment will be discussed and presented.
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May 2013
Meeting abstract. No PDF available.
May 01 2013
The shallow sea experiment with usage of linear hydrophone array
Wojciech Szymczak;
Wojciech Szymczak
Hydroacoustic Inst., Polish Naval Acad., str. Smidowicza 69, Gdynia 81-103, [email protected]
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Eugeniusz Kozaczka;
Eugeniusz Kozaczka
Gdansk Univ. of Technol., Gdynia, Poland
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Grazyna Grelowska;
Grazyna Grelowska
Hydroacoustic Inst., Polish Naval Acad., Gdynia, Poland
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Ignacy Gloza;
Ignacy Gloza
Hydroacoustic Inst., Polish Naval Acad., Gdynia, Poland
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Sławomir Kozaczka
Sławomir Kozaczka
Hydroacoustic Inst., Polish Naval Acad., Gdynia, Poland
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J. Acoust. Soc. Am. 133, 3439 (2013)
Citation
Wojciech Szymczak, Eugeniusz Kozaczka, Grazyna Grelowska, Ignacy Gloza, Sławomir Kozaczka; The shallow sea experiment with usage of linear hydrophone array. J. Acoust. Soc. Am. 1 May 2013; 133 (5_Supplement): 3439. https://doi.org/10.1121/1.4806074
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