Results 231 to 240 of about 35,722 (281)

Autonomous Underwater Vehicle Navigation

IEEE Journal of Oceanic Engineering, 2010
This paper considers the vehicle navigation problem for an autonomous underwater vehicle (AUV) with six degrees of freedom. We approach this problem using an error state formulation of the Kalman filter. Integration of the vehicle's high-rate inertial measurement unit's (IMU's) accelerometers and gyros allow time propagation while other sensors provide
Paul A. Miller, Jay A. Farrell, Yuanyuan Zhao, Vladimir Djapic   +3 more
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Avoidance of underwater cliffs for autonomous underwater vehicles

IEEE/RSJ International Conference on Intelligent Robots and System, 2003
This paper introduces a method aiming to allow underactuated autonomous underwater vehicles navigating in an unknown environment to avoid underwater cliffs. Three electro-acoustic transducers situated in the front part of the vehicle provide bathymetric data.
Creuze, Vincent, Jouvencel, Bruno
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An autonomous underwater vehicle for competition

2012 First National Conference for Engineering Sciences (FNCES 2012), 2012
The research of this paper was derived from the small autonomous underwater vehicle (AUV)Raider well performed in the 15th International Underwater Vehicle Competition (IAUVC),San Diego. In order to improve the performance of underwater vehicle, the control system of performance motion played an important role on autonomous underwater vehicles stable ...
Hai Tian, Bo Hu, Can Yu Liu, Guo Chao Xie, Hui Min Luo   +4 more
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Autonomous Underwater Vehicle Navigation

2016
This chapter surveys the problem of navigation for autonomous underwater vehicles (AUV s). Navigation is critical for the safety and effectiveness of AUV missions. The unavailability of global positioning system (GPS ) underwater makes AUV navigation a challenging research problem.
John J. Leonard, Alexander Bahr
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Autonomous Underwater Vehicle Control

2019 Innovations in Power and Advanced Computing Technologies (i-PACT), 2019
Earth, the third planet from the sun is the only planet on which life is known to exist. Seventy percent of the earth is covered by oceans. These oceans have been playing a very crucial role in transporting of goods even before the road. At the same time it cannot be ignored the possibilities of the negative role of the oceans- a very serious threat to
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From autonomous underwater vehicles (AUVs) to supervised underwater vehicles (SUVs)

Oceans '97. MTS/IEEE Conference Proceedings, 2002
The past fifteen years have seen the development of a new family of unmanned underwater vehicles without umbilical. Initially, those vehicles were operated in the direct vicinity of the mother-ship. With the increase in range and reliability, users are now willing to operate without support vessels.
H. Thomas, E. Petit
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Autonomous Underwater Vehicles (auvs)

2001
Pelagic Open ocean environment. A marine sediment with that fraction derived from the continents indicating deposition from a dilute suspension distributed throughout deep-sea water. Phyllosilicate Layered or sheet silicate mineral, formed by sharing three of the four oxygens in neighboring silicon tetrahedra.
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Autonomous navigation of underwater vehicles

IEEE Oceanic Engineering Society. OCEANS'98. Conference Proceedings (Cat. No.98CH36259), 2002
The goal of the work is to propose a method to solve with visual means the problem of underwater navigation of an autonomous vehicle moving in deep sea in order to perform inspection of a pipe positioned near the ocean floor. We refer to the ability of an autonomous system to determine its motion with respect to the environment. It is well known that a
A. Branca, E. Stella, A. Distante
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Cooperative Autonomous Underwater Vehicle localization

OCEANS'10 IEEE SYDNEY, 2010
Due to some communication constraints of the underwater environment, cooperative localization for AUVs is a hard task. In this paper, we present the state of the art in this area, analyse the existing solutions to related problems and propose 2 algorithms, based on the EKF, to solve the localization problem with a group of Autonomous Underwater ...
Marcelo Borges Nogueira, Joao Borges Sousa, Fernando Lobo Pereira   +2 more
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