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Saturday, August 8, 2020 | History

1 edition of The application of artificial-intelligence techniques to the automatic identification of sounds received at hydrophones and to the correlation of these sounds between hydrophones found in the catalog.

The application of artificial-intelligence techniques to the automatic identification of sounds received at hydrophones and to the correlation of these sounds between hydrophones

Dennis A. Seem

The application of artificial-intelligence techniques to the automatic identification of sounds received at hydrophones and to the correlation of these sounds between hydrophones

by Dennis A. Seem

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Published by Naval Postgraduate School, Available from National Technical Information Service in Monterey, Calif, Springfield, Va .
Written in English


About the Edition

The U. S. Navy"s Integrated Underwater Surveillance System (IUSS) monitors hydrophones in the northeast Pacific. Geophysicists studying the IUSS data find seismic events and correlate them between hydrophones to locate their sources. Marine biologists and intelligence personnel are interested in the identification and localization of other sounds in the IUSS data. The current means of identifying and correlating sounds is a laborious visual examination of the data on a graphics workstation. In this thesis, a computer-vision method is presented for automatically identifying the sources of low-frequency sounds that are received on the IUSS hydrophones. Also presented in this thesis is a blackboard architecture for correlating sound "shapes" between hydrophones using a time-shift transform. The methods in this thesis properly identify approximately 90% of apparent whale moans and 100% of seismic events. The use of the time-shift transform has resulted in nearly a 100% success rate in correlating whale moans between far-field hydrophones, despite marked sound distortions with distance.

Edition Notes

StatementDennis A. Seem
The Physical Object
Pagination106 p. ;
Number of Pages106
ID Numbers
Open LibraryOL25519232M


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The application of artificial-intelligence techniques to the automatic identification of sounds received at hydrophones and to the correlation of these sounds between hydrophones by Dennis A. Seem Download PDF EPUB FB2