Results 21 to 30 of about 429,258 (272)

Real-time Model-based Image Color Correction for Underwater Robots

, 2020
Recently, a new underwater imaging formation model presented that the coefficients related to the direct and backscatter transmission signals are dependent on the type of water, camera specifications, water depth, and imaging range.
Li, Alberto Quattrini, Roznere, Monika
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Krill: An exploration in underwater sensor networks [PDF]

, 2005
While sensor networks have now become very popular on land, the underwater environment still poses some difficult problems. Communication is one of the difficult challenges under water. There are two options: optical and acoustic.
Chen, P., Corke, Peter, Dunbabin, Matthew, Kotay, K., Overs, Leslie, Rus, Daniela, Sikka, Pavan, Vasilescu, Iuliu   +7 more
core   +3 more sources

An Improved Aerial Target Localization Method with a Single Vector Sensor

Sensors, 2017
This paper focuses on the problems encountered in the actual data processing with the use of the existing aerial target localization methods, analyzes the causes of the problems, and proposes an improved algorithm.
Anbang Zhao, Xuejie Bi, Juan Hui, Caigao Zeng, Lin Ma   +4 more
doaj   +1 more source

Hearing in the Juvenile Green Sea Turtle (Chelonia mydas): A Comparison of Underwater and Aerial Hearing Using Auditory Evoked Potentials

, 2016
Sea turtles spend much of their life in aquatic environments, but critical portions of their life cycle, such as nesting and hatching, occur in terrestrial environments, suggesting that it may be important for them to detect sounds in both air and water.
Eckert, Scott A., Harms, Craig A., Jones, T. Todd, Mann, David A., Piniak, Wendy Dow   +4 more
core   +3 more sources

Identification of Risks in the Course of Managing the Deep Sea Archeological Projects Using Marine Robotics [PDF]

, 2016
An analysis is conducted of the basic risks that occur when managing the projects of deep-sea archeological research. It is proposed to consider possible risks of such projects in the form of a general set of risks that contains subsets of the identified
Nadtoshy, A. (Anatoly)
core   +2 more sources

Prompt muon contribution to the flux underwater [PDF]

, 2001
We present high energy spectra and zenith-angle distributions of the atmospheric muons computed for the depths of the locations of the underwater neutrino telescopes.
A. B. Kaidalov, A. B. Kaidalov, A. D. Martin, A. D. Martin, A. N. Vall, B. C. Rastin, E. Andres, E. G. Anassontzis, E. V. Bugaev, E. V. Bugaev, E. V. Bugaev, E. V. Bugaev, G. Gelmini, G. Gelmini, G. Gelmini, G. T. Zatsepin, H. Inazawa, H. L. Lai, I. A. Belolaptikov, J. W. Elbert, L. Pasquali, L. V. Volkova, L. V. Volkova, L. V. Volkova, M. Aglietta, M. Aglietta, M. Ambrosio, M. Thunman, O. I. Piskunova, S. I. Nikol’sky, S. I. Sinegovsky, S. Matsuno, T. S. Sinegovskaya, V. A. Naumov, V. A. Naumov, V. A. Naumov, V. N. Bakatanov, W. Rhode   +37 more
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A Multi-Spatial Scale Ocean Sound Speed Prediction Method Based on Deep Learning

Journal of Marine Science and Engineering
As sound speed is a fundamental parameter of ocean acoustic characteristics, its prediction is a central focus of underwater acoustics research. Traditional numerical and statistical forecasting methods often exhibit suboptimal performance under complex ...
Yu Liu, Benjun Ma, Zhiliang Qin, Cheng Wang, Chao Guo, Siyu Yang, Jixiang Zhao, Yimeng Cai, Mingzhe Li   +8 more
doaj   +1 more source

Soft-Switching Proximate Time Optimal Heading Control for Underactuated Autonomous Underwater Vehicle

IEEE Access, 2019
In this paper, a soft-switching proximate time-optimal control (PTOC) is proposed based on the model-compensation extended state observer (ESO) and Takagi-Sugeno fuzzy switching, for the fast set-heading tracking of underactuated autonomous underwater ...
An Li, Li Ye, Jiang Yanqing, Li Yueming, Cao Jian, He Jiayu   +5 more
doaj   +1 more source

A comparison between mathematical models of stationary configuration of an undewater towed system with experimental validation [PDF]

, 2017
The analysis of underwater towed systems attracted the interest of many researchers because of the recent years utilization of remotely-operated underwater vehicle (ROV) and towed array in offshore and military applications.
Paifelman, Elena
core   +1 more source

The application of combined momentum and blade element theory for aerodynamics performance analysis of rotating blades [PDF]

, 2011
In this thesis, a simulation package for the Six Degrees of Freedom (6DOF ) motion of an underwater vehicle is developed. Mathematical modeling of an underwater vehicle is done and the parameters needed to write such a simulation package are ...
M Mohammed, Abdelrazzak Gumaa
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