Results 181 to 190 of about 3,610 (212)
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APPLICATION OF SENSORLESS ELECTRIC DRIVE TO UNMANNED UNDERSEA VEHICLE PROPULSION
IFAC Proceedings Volumes, 2002Abstract 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 +2 more
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Unmanned Undersea Vehicles: An Asymmetric Tool for Sea Denial
2008Abstract : 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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Intelligent obstacle avoidance system for unmanned undersea vehicles in shallow water
SPIE Proceedings, 2004An unmanned undersea vehicle (UUV) needs an obstacle avoidance capability to make autonomous path planning decisions for successful undersea search and survey, maritime reconnaissance, communication/navigation aids, and tracking and trailing in uncharted shallow water.
Keehoon Kim +2 more
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Optical Signatures and Detection Strategy for a Finned Bioinspired Unmanned Undersea Vehicle
IEEE Journal of Oceanic Engineering, 2018The surface expressions for a submerged finned bioinspired unmanned underwater vehicle (UUV) were examined using VNIR and longwave infrared sensors as the system maneuvered in laboratory and field environments. Laboratory experiments revealed that the eddies generated by the flapping of the finned propulsion and attitude control system initially ...
K. Peter Judd +4 more
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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, 2003The 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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A system to integrate unmanned undersea vehicles with a submarine host platform
2012http://archive.org/details ...
Calvert, Willard +6 more
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Employment Considerations in the Use of Unmanned Undersea Vehicles by the Operational Commander
2005Abstract : Unmanned Undersea Vehicles (UUVs) are among the latest undersea warfare capabilities in various stages of development and delivery to the warfighter. Fielding of these systems serve both as force multipliers and risk reduction agents and offer new efficiencies to the operational commander with regard to the factors of space, time, and forces.
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The Use of a Simple Neural Network in the Motion Control of Unmanned Undersea Vehicles
Proceedings of the 6th International Symposium on Unmanned Untethered Submersible Technology,, 2005The kinematic motion control of multiple simulated autonomous vehicles is described. This control is accomplished via the use of a simple neural network which accepts range, bearing, and heading information to produce a speed and rudder angle. The controller is explained and used to show several kinds of behavior in two autonomous vehicles (UUY and ...
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Signal processing agorithms for unmanned undersea vehicles navigation and collision avoidance.
The Journal of the Acoustical Society of America, 2009In this paper, signal processing algorithms for dynamic UUV homing and docking, navigation, and collision avoidance are presented. Many conventional techniques are image-based, which involved computation-intensive image reconstruction procedures, which is ineffective in dynamic real-time environment.
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2015
Nuclear powered submarines are most vulnerable to detection and attack while at periscope depth. Submarines also have specific communication and time requirements they have to meet and the primary method of transmitting and receiving data is via satellite, which requires the submarine to be at periscope depth.
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Nuclear powered submarines are most vulnerable to detection and attack while at periscope depth. Submarines also have specific communication and time requirements they have to meet and the primary method of transmitting and receiving data is via satellite, which requires the submarine to be at periscope depth.
openaire +1 more source