Results 161 to 170 of about 9,040 (196)
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Robust control of Autonomous Underwater Vehicles (AUVs)
2008 Canadian Conference on Electrical and Computer Engineering, 2008This paper presents a robust nonlinear method for controlling depth and head of Autonomous Underwater Vehicles. The control of autonomous underwater vehicles (AUV) presents a number of unique and formidable challenges. AUV dynamic is highly nonlinear, coupled, time varying and subject to hydrodynamic uncertainties and external disturbances.
Mehdi Narimani, Mehdi Loueipour
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Cable Route Surveys Utilizing Autonomous Underwater Vehicles (AUVs)
Marine Technology Society Journal, 2000Detailed geophysical surveys are required in both deep and shallow water to avoid potential hazards and to provide for the installation and safety of fiber optic telecommunication cables. Unfortunately, data obtained in potential burial zones with existing technology are slow and often data accuracy may be questionable.
Jay G. Northcutt +3 more
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Energy systems for FAU AUVs [autonomous underwater vehicles]
Proceedings of the 2002 Workshop on Autonomous Underwater Vehicles, 2002., 2003The AUV research program at Florida Atlantic University (USA) has focused its design efforts on battery powered AUVs, developing both the battery packs and power distribution systems that provide a robust energy system for the AUV. This paper focuses on the development of our energy systems on their 3 AUVs (Ocean Voyager II, Ocean Explorer and Morpheus)
E. Henderson, T. Pantelakis, E. An
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Autonomous Underwater Vehicles (auvs)
2001Pelagic 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 Underwater Vehicle (AUV) Fest 2007 Summary
OCEANS 2007, 2007This paper will summarize the results of AUV Fest 2007. AUV Fest 2007 was hosted by the Naval Surface Warfare Center Panama City (NSWC PC) at the Naval Support Activity Panama City (NSA PC). This Sea Trial Project and FORCENet Enabling Demonstration was the largest in-water demonstration of unmanned underwater, surface, air and ground vehicles ever ...
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Hydrothermal exploration using Autonomous Underwater Vehicles (AUVs)
10th International Congress of the Brazilian Geophysical Society & EXPOGEF 2007, Rio de Janeiro, Brazil, 19-23 November 2007, 2007Thirty years after the first discovery of seafloor hydrothermal venting no more than 90% of the global mid-ocean ridge crest has been investigated for seafloor hydrothermal venting. Until recently entire ocean basins had remained unexamined. What was needed was a new, more efficient mode of exploration that could not only detect for the presence of ...
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Modeling of the DEF-ALFA Autonomous Underwater Vehicle (AUV)
RESEARCH JOURNAL OF PURE SCIENCE AND TECHNOLOGY, 2023This article presents a modeling of the dynamics of the DEF-ALFA autonomous underwater vehicle designed within the search project PID UNDEFI 484/2019 of the National Defense University. This paper proposes a previous study of the general characteristics of AUVs regarding their dynamic behavior and proposes a working model to apply it in the DEF-ALFA ...
Dr. Ing. Alejandro Molina +3 more
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Alister – Rapid Environment Assessment AUV (Autonomous Underwater Vehicle)
2010ECA is mainly known worldwide for its successful PAP family (mine disposal systems). In the late 1970s, ECA designed the first operational AUV, named EPAULARD for IFREMER. Using its know-how gained over the years in designing and building various types of free swimming and inspection underwater vehicles, ECA decided in spring 2003 to develop the A3000,
Thierry Copros, Daniel Scourzic
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Navigation of an Autonomous Underwater Vehicle(AUV) Using Robust SLAM
2006 IEEE International Conference on Control Applications, 2006This paper will present a robust extended Kalman filter (REKF) applied to the navigation of an autonomous underwater vehicle (AUV) using robust Simultaneous Localization and Mapping (SLAM) techniques. Conventional Kalman Filter methods suffer from the assumption of Gaussian noise statistics, which often lead to failures when these assumptions do not ...
Michael E. West, Vassilis L. Syrmos
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Autonomous underwater vehicle (AUV) investigations to protect valuable invertebrates
2011 IEEE Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies, 2011The lancelet is an important animal in evolutionary studies. Artificial proliferation is necessary to secure individuals for experiments. However, the number of individuals and their habitats are decreasing remarkably in the Ariake Sea. Despite the transplantation of frys, the number of adults has not increased.
K. Akimoto +11 more
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