HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 75-82, vol. 15, 2012 Tadeusz Janowski Ośrodek Badawczo-Rozwojowy Centrum Techniki Morskiej S.A., Gdynia, Poland Edyta Porosińska Ośrodek Badawczo-Rozwojowy Centrum Techniki Morskiej S.A., Gdynia, Poland Key words: DOA; bearing estimation; MUSIC; GPS Abstract: Hydroacoustic location of underwater sound sources is commonly used to protect naval bases or military sea areas from various threats. Sonar technology applies hydrophones to
detect sources of underwater noises. DOA estimation method based on the high angular
resolution MUSIC algorithms are commonly used for small size antennas composed of
hydrophones. The article proposes another approach to this problem. Additional equipage of
the hydrophone with the GPS receiver and radio transreceiver enables construction of the
distributed antenna. The size of such antenna can be significantly higher in comparison to the
classical passive antenna. The article describes the algorithms of the sound sources location,
results of the computer simulation and possibilities of hydrophone manufacturing as well its
practical usage.
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