Results 151 to 160 of about 1,011,040 (196)

Fuzzy Logic for Depth Control of Unmanned Undersea Vehicles

IEEE Journal of Oceanic Engineering, 1995
Fuzzy logic is a viable control strategy for depth control of undersea vehicles. It has been applied to the low speed ballast control problem for ARPA's unmanned undersea vehicle (UUV), designed and built by Draper. A fuzzy logic controller has been designed and tested in simulation that issues pump commands to effect changes in the UUV depth, while ...
exaly   +2 more sources

Bio-inspired unmanned undersea vehicle

SPIE Proceedings, 2010
Biological systems in ocean environment provide all the desired features required for design of unmanned undersea vehicles. We noticed the uniqueness and simplicity in the design of rowing medusa and have successfully demonstrated working prototypes of Aurelia Aurita. In this study, we demonstrate the effect of bell joints in reducing the contraction
Colin F. Smith, Shashank Priya
openaire   +1 more source

Hydrogen Fuel Cells for Unmanned Undersea Vehicle Propulsion

ECS Transactions, 2016
The high efficiency of fuel cells combined with the high energy of hydrogen can be used to create energy systems for long endurance vehicles. As the automotive sector has developed fuel cells for this purpose, the same technology might enable long endurance unmanned undersea vehicles (UUVs).
Karen Swider-Lyons, Daniel Deitz
openaire   +1 more source

Recovering unmanned undersea vehicles with a homing and docking sonar

Proceedings of OCEANS 2005 MTS/IEEE, 2005
There is a great deal of interest in deploying and recovering an unmanned undersea vehicle (UUV) with a submarine or a surface ship. This paper describes a homing and docking sonar (HDS) that was developed for a 21-inch diameter UUV and host platform.
G.M. de Goede, D. Norris
openaire   +1 more source

Expanding Missions for Small Unmanned Undersea Vehicles (UUVs)

Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 2003
Small unmanned undersea vehicles (UUVs), those less than 150 pounds, have many advantages for field operations over the larger models. The increase in number and capabilities of these vehicles is opening doors for an ever expanding number of applications.
Barbara Fletcher, Robert L. Wernli
openaire   +1 more source

A nonlinear sliding mode autopilot for unmanned undersea vehicles

Proceedings of OCEANS'94, 2002
A nonlinear sliding mode autopilot has been designed to control the United States Navy, Office of Naval Research (ONR) unmanned undersea vehicles (UUVs). The paper discusses the selection process behind the choice of the sliding mode technique, and the design of the autopilot.
S.J. Hills, D.R. Yoerger
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US Navy unmanned undersea vehicle navigation

Proceedings of OCEANS'94, 2002
The ability to guide and position an undersea vehicle with high precision lends itself to multiple missions, including mine warfare and undersea surveillance. In addition, precise navigation provides the capability to locate security threats and biological and oceanographic anomalies.
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TPV power source development for an unmanned undersea vehicle

AIP Conference Proceedings, 1995
The thermophotovoltaic (TPV) generation of electrical power promises efficiencies that are exploitable for military and commercial applications. TPV offers a combination of unique characteristics as a power source for military Unmanned Undersea Vehicles.
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Conceptual Design of Future Undersea Unmanned Vehicle (UUV) System for Mine Disposal [PDF]

IEEE Systems Journal, 2014
A conceptual design is proposed for an effective mine countermeasure (MCM) system, which consists of three unmanned underwater vehicles (UUVs) and 10-20 small charged deliverable vehicles. New underwater optical communication systems are introduced to improve onboard mine reconnaissance and decision making with the key technologies focused on system ...
Peter C Chu
exaly   +3 more sources

Solid Oxide Fuel Cells in Unmanned Undersea Vehicle Applications

MRS Proceedings, 2006
ABSTRACTThe Navy is currently investigating solid oxide fuel cells (SOFCs) for the propulsion of unmanned undersea vehicles (UUVs). SOFCs are being targeted because of their potential to carry out extended missions, which are not possible using current battery technology.
Louis George Carreiro, A. Alan Burke
openaire   +1 more source