Results 171 to 180 of about 20,086 (211)
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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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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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Development of a side scan sonar module for the underwater simulator
2017 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2017In this paper, we implemented the Side Scan Sonar (SSS) module for the UnderWater Simulator (UWSim) [1], specifically focusing on sonar image simulation. To obtain the simulated SSS images, we adopted the Lambertian diffusion model [2]. The beam profile was modeled using a pair of sine wave functions.
Dae-Hyeon Gwon +5 more
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Segmentation of Side Scan Sonar Images on AUV
2019 IEEE Underwater Technology (UT), 2019Side scan sonar is an active sonar. It uses seafloor backscattering to obtain the topographic information of the seabed, and constructs seabed topographic image information, which is the basis of seabed imaging. For AUV equipped with side scan sonar, the interpretation of sonar images is beneficial to enhance their autonomy.
Fei Yu +7 more
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Classification and mosaicking of side scan sonar image
OCEANS 2017 - Aberdeen, 2017As an underwater detection sensor, side-scan sonar plays an important role in marine survey, mineral exploration, underwater archaeology and so on. During the use of side-scan sonar, classifiication and mosaicking of collected images is essential in most cases. There are two main contributions in our work.
Qixin Sha +6 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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New Capabilities for Side-Scan Sonar
1998Now that side-scan sonar has become a generally accepted remote sensing tool, technical developments are proceeding at a rapid pace. Until recently, basic systems primarily used straightforward analog signal processing, and digital techniques were confined to recorder functions such as stepping motor drivers.
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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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Processing of the information from side-scan sonar
SPIE Proceedings, 2016The kinetic model, describing sound propagation in a randomly inhomogeneous medium with diffuse reflection by Lambert's cosine law on the bottom surface, is considered. Based on it the inverse problem of bottom scattering reconstruction is formulated.
Evgeny O. Kovalenko +2 more
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