Results 121 to 130 of about 1,226 (172)
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Nearshore Side-Scan Sonar Studies
Journal of Atmospheric and Oceanic Technology, 1993Abstract Side-scan sonars operating at 80–250 kHz have been deployed to produce narrow beams directed parallel and normal to shore on a gently sloping beach. These provide measurements of processes (such as wave propagation) seaward of the edge of the surf zone.
S. A. Thorpe, A. J. Hall
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Side-Scan Sonar: Selective Textural Enhancement
OCEANS '76, 1976A variety of signal processing techniques are available which can assist the interpretation of side-scan sonar. In exploring the range of possibilities for processing with these techniques we have developed selective tuning of textural enhancement for different textural wavelengths. In practice we have found it desirable to be free to decide on tuning,
D. Krotser, M. Klein
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A new generation side scan sonar
OCEANS '88. 'A Partnership of Marine Interests'. Proceedings, 2003Side-scan sonar traditionally has used a graphic paper recording system for the display and annotation of the data. A novel side-scan system specifically designed to use color video as the primary data display is described. Several design considerations and tradeoffs are discussed, some of which are unique to a system using a video display.
R.G. Asplin, C.G. Christensson
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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
openaire +1 more source