Results 181 to 190 of about 5,789 (225)
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Underwater Gliders for Ocean Research
Marine Technology Society Journal, 2004Underwater gliders are autonomous vehicles that profile vertically by controlling buoyancy and move horizontally on wings. Gliders are reviewed, from their conception by Henry Stommel as an extension of autonomous profiling floats, through their development in three models, and including their first deployments singly and in numbers.
Daniel L. Rudnick +4 more
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The autonomous underwater glider "Spray"
IEEE Journal of Oceanic Engineering, 2001A small (50-kg, 2-m long) underwater vehicle with operating speeds of 20-30 cm/s and ranges up to 6000 km has been developed and field tested. The vehicle is essentially an autonomous profiling float that uses a buoyancy engine to cycle vertically and wings to glide horizontally while moving up and down.
J. Sherman +3 more
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Lagrangian Modelling of an Underwater Wave Glider
Ship Technology Research, 2012AbstractThis paper introduces a control-oriented modelling approach for a hybrid autonomous underwater vehicle, the Underwater Wave Glider. The vehicle can accomplish both surface and underwater tasks by changing its shape: it can operate as a wave glider at the sea surface, exploiting wave and solar energy to recharge the onboard batteries, and switch
CAITI, ANDREA +4 more
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Sampling optimization for networked underwater gliders
OCEANS 2016 - Shanghai, 2016This paper focuses on coverage sampling over a given region by a fleet of underwater gliders. The coverage performance is evaluated by the observing uncertainty performed by Objective Analysis (OA). Deployed gliders are commonly restricted to move through transects along which the data collected are convenient for data assimilation.
Shijie Liu +4 more
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OCEANOGRAPHIC ENVIRONMENTAL ASSESSMENT USING UNDERWATER GLIDERS
Journal of Marine Technology and Environment, 2022REP(MUS) 21 is an annual exercise jointly organised by the Portuguese Navy, the University of Porto, NATO’s Centre for Maritime Research and Experimentation (CMRE) and the NATO Maritime Unmanned Systems Initiative. The exercise gives Allies and NATO partners a chance to field and evaluate new maritime technologies.
LAURENȚIU-FLORIN CONSTANTINOIU +2 more
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Adaptive control for hybrid underwater gliders
OCEANS 2015 - MTS/IEEE Washington, 2015This paper was developed by the Department of Automatic Control, CINVESTAV in collaboration with the Center for engineering and Industrial Development CIDESI, Queretaro. This document involves the design and construction of a hybrid underwater Glider.
Ottmar Rafael Uriza Gosebruch +4 more
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Ocean Research Enabled by Underwater Gliders
Annual Review of Marine Science, 2016Underwater gliders are autonomous underwater vehicles that profile vertically by changing their buoyancy and use wings to move horizontally. Gliders are useful for sustained observation at relatively fine horizontal scales, especially to connect the coastal and open ocean. In this review, research topics are grouped by time and length scales.
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Stability and performance of underwater gliders
2012 Oceans, 2012Underwater gliders are efficient mobile sensor platforms that can be deployed for months at a time, traveling thousands of kilometers. As with any vehicle, different applications impose different mission requirements which impact vehicle design. In this paper, we consider a conventional glider configuration and investigate the relationship between ...
null Shuangshuang Fan +2 more
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Buoyancy engine developed for underwater gliders
Advanced Robotics, 2016A buoyancy engine with a swashplate-type axial piston pump was developed. Its oil extrusion and drawing properties under high hydraulic pressure were evaluated. This buoyancy engine is now installed in an underwater glider that will achieve long-term monitoring of ocean environments up to 2100 m depth in a designated area with lower operational costs ...
Kenichi Asakawa +5 more
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Stabilization and coordination of underwater gliders
Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2003An underwater glider is a buoyancy-driven, fixed-wing underwater vehicle that redistributes internal mass to control attitude. We examine the dynamics of a glider restricted to the vertical plane and derive a feedback law that stabilizes steady glide paths.
P. Bhatta, N.E. Leonard
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