Results 161 to 170 of about 794,446 (201)

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
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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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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
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Reviews of fuel cells and energy storage systems for unmanned undersea vehicles

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
The world has a growing need for advanced Unmanned Undersea Vehicles (UUVs) that can complete various types of missions autonomously.
Jun Lu, Tian Tang, Chao Bai, Huizhong Gao, Junguang Wang, Cheng Li, Yuke Gao, Zhaoyuan Guo, Xiao Zong   +8 more
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A System to Integrate Unmanned Undersea Vehicles with a Submarine Host Platform

2011
Abstract : Submarines offer a capability to deploy and retrieve unmanned undersea vehicles (UUV) in littoral and blue water Areas of Operation while avoiding detection. Integration of the submarine and UUV through a launch and recovery mechanism offers unique challenges with respect to host submarine safety, UUV recovery, UUV replenishment and life ...
Sarah Malecki, Brian Heidt, Rachel Cohn, Brian Powell, Joseph Lojek, Gail Goodman, Willard Calvert   +6 more
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APPLICATION OF SENSORLESS ELECTRIC DRIVE TO UNMANNED UNDERSEA VEHICLE PROPULSION

IFAC Proceedings Volumes, 2002
Abstract Sensorless electric drive is an enabling technology in the realization of submersible propulsion systems such as the integrated motor/propulsor (IMP). The IMP concept features an electric motor embedded within the shroud of an undersea vehicle's propulsor.
Todd D. Batzel, Daniel P. Thivierge, Kwang Y. Lee   +2 more
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Unmanned Undersea Vehicles: An Asymmetric Tool for Sea Denial

2008
Abstract : One of the most salient trends in military technology is the growing prominence of unmanned vehicles. Much has been written about Unmanned Air Vehicles (UAVs), and a fair amount about Unmanned Surface and Unmanned Ground Vehicles (USV/UGVs). In contrast, very little has been written about Unmanned Undersea Vehicles (UUVs).
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An acoustic lens sonar using micromechanical hydrophones for unmanned undersea vehicles

Proceedings of the 1992 Symposium on Autonomous Underwater Vehicle Technology, 2003
The system design of an acoustic lens sonar using micromechanical hydrophones is examined for a mission as the forward-looking sonar on an autonomous underwater vehicle (AUV). Micromechanical hydrophone technology combined with an acoustic lens system can provide a high sensitivity, high resolution imaging sonar system. As the micromachining technology
J.J. Bernstein, P.A. Rosenstrach
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