Results 161 to 170 of about 19,957 (208)
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OCEANS 2000 MTS/IEEE Conference and Exhibition. Conference Proceedings (Cat. No.00CH37158), 2002
Selection of the correct side scan sonar system for a specific application is difficult for the typical ocean operator. The source of this difficulty results from the diversity of side scan sonar designs and a general lack of knowledge on the capabilities and restrictions of available side scan sonar systems.
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Selection of the correct side scan sonar system for a specific application is difficult for the typical ocean operator. The source of this difficulty results from the diversity of side scan sonar designs and a general lack of knowledge on the capabilities and restrictions of available side scan sonar systems.
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Side scan sonar in oyster management
Oceans '02 MTS/IEEE, 2003Oyster harvest from Mississippi reefs provide jobs for numerous fishermen and contribute substantially to the economy. Proper management of these reefs is vital for continued harvest. Enhancement management techniques (i.e. cultch planting and/or cultivation) should helps to ensure even greater future production.
D. Diaz +4 more
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Side Scan Sonar Object Classification Algorithms
Proceedings of the 6th International Symposium on Unmanned Untethered Submersible Technology,, 2005Autonomous underwater vehicles require the capability to understand their environment. This understanding, coupled with the operational goals of the vehicle, determines the subsequent actions of the vehicle. Environmental understanding is realized through the vehicle's sensors and a priori knowledge. This paper focuses on our investigation of automatic
M.F. Doherty +5 more
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Side scan sonar and interferometric noise
Oceans '99. MTS/IEEE. Riding the Crest into the 21st Century. Conference and Exhibition. Conference Proceedings (IEEE Cat. No.99CH37008), 2002This paper concerns the description of different noise sources encountered as well as the impact of each of these sources through sonar interferometric data acquisition. The impact of noise is directly linked to the ability of the Vernier device to determine the 2/spl pi/ ambiguity of the phase measure and to know the altitude of the bottom.
C. Sintes, B. Solaiman
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2002
Side scan sonar is the most commonly used remote sensing tool for detecting shipwrecks, artifacts, and other cultural resources of archaeological interest.
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Side scan sonar is the most commonly used remote sensing tool for detecting shipwrecks, artifacts, and other cultural resources of archaeological interest.
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Digitising of side-scan sonar signals
Ultrasonics, 1976Abstract A criterion for judging the adequacy of the digitisation rate of side-scanning sonar records has been established by inspection of the two-dimensional Fourier power spectrum of areas of record. The lowest digitising rate necessary to retain the information content in the signal is an important parameter in the efficient and economical ...
E. Whipp, D.A. Horne
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1984
The side scan sonar represents the only high-resolution seismic tool that provides coverage to both sides of a survey vessel’s track. It is a most practical and valuable tool for obtaining an acoustic picture of the sea floor. Operational side scan sonar systems were developed at the British National Institute of Oceanography following World War II, as
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The side scan sonar represents the only high-resolution seismic tool that provides coverage to both sides of a survey vessel’s track. It is a most practical and valuable tool for obtaining an acoustic picture of the sea floor. Operational side scan sonar systems were developed at the British National Institute of Oceanography following World War II, as
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A New Generation Side Scan Sonar
1993While it is now possible, with multibeam echosounders, to obtain true bathymetric images of the sea floor up to ranges of 10 km 1,2, the best way of imaging the underwater relief with high resolution at lower ranges remains the side scan sonar 3. This 30 years old technique is however limited in several aspects that will be discussed later.
Pierre Alais +3 more
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Object detection in side scan sonar
SPIE Proceedings, 2015Automatic target detection is a challenging task as the response from an underwater target may vary greatly depending on its configuration, sonar parameters and the environment. We propose a Z- test algorithm for target detection in side scan sonar image which avoids this problem that covers the variation in the target response.
Wenwu Wang, Binbin Cheng, Yao Chen
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Historical development of side scan sonar
The Journal of the Acoustical Society of America, 2017The seabed mapping side scan sonar, conceived and developed in the 1950s at the U.S. Navy Mine Defense Laboratory (USNMDL) [Commander and Sternlicht, J. Acoust. Soc. Am. 137, 2307 (2015)], was inspired by the Royal Navy ASDIC Type-162, a late-WWII hull mounted side-looking sonar capable of recording the silhouettes of bottomed U-boats. The commissioned
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