Results 131 to 140 of about 1,248 (169)

Side scan sonar in oyster management

Oceans '02 MTS/IEEE, 2003
Oyster 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, K. Cuevas, M. Buchanan, S. Gordon, W.S. Perret   +4 more
openaire   +1 more source

Development of a side scan sonar module for the underwater simulator

2017 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2017
In 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, Joowan Kim, Moon Hwan Kim, Ho Gyu Park, Tae Yeong Kim, Ayoung Kim   +5 more
openaire   +1 more source

New Capabilities for Side-Scan Sonar

1998
Now 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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Segmentation of Side Scan Sonar Images on AUV

2019 IEEE Underwater Technology (UT), 2019
Side 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, Yuemei Zhu, Qi Wang, Kaige Li, Meihan Wu, Guangliang Li, Tianhong Yan, Bo He   +7 more
openaire   +1 more source

Processing of the information from side-scan sonar

SPIE Proceedings, 2016
The 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, Andrey A. Sushchenko, Igor V. Prokhorov   +2 more
openaire   +1 more source

Side Scan Sonar Object Classification Algorithms

Proceedings of the 6th International Symposium on Unmanned Untethered Submersible Technology,, 2005
Autonomous 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, J.G. Landowski, P.F. Maynard, G.T. Uber, D.W. Fries, F.H. Maltz   +5 more
openaire   +1 more source

Classification and mosaicking of side scan sonar image

OCEANS 2017 - Aberdeen, 2017
As 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, Yan Song, Jia Guo, Chen Feng, Guangliang Li, Bo He, Tianhong Yan   +6 more
openaire   +1 more source

Historical development of side scan sonar

The Journal of the Acoustical Society of America, 2017
The 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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The improvement of side-scan sonar's towfish

2011 Second International Conference on Mechanic Automation and Control Engineering, 2011
Since our first side-scan sonar was used more than twenty years. With more and more users and the using times grown up, We found something was not very convenient during using. So we have made some change in the design along with the users experience. This article introduce the improvement of the side-scan sonar's towfish.
openaire   +1 more source

The first geological use of side‐scan sonar

Geology Today, 1992
Side‐scan sonar is now a sophisticated tool providing high‐quality data on the ocean floor. In its early days, however, it gave discouraging results, and for many years it seemed as if it would never provide useful geological information at all.
openaire   +1 more source