Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 293 for “"Underwater Vehicles"”.
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Forces on underwater vehicles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Cooperative localization for autonomous underwater vehicles
Self-localization of an underwater vehicle is particularly challenging due to the absence of Global Positioning System (GPS) reception or features at known positions that could otherwise have been used for position computation. Thus Autonomous Underwater Vehicle (AUV) applications typically require …
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Cooperative localization for autonomous underwater vehicles
Self-localization of an underwater vehicle is particularly challenging due to the absence of Global Positioning System (GPS) reception or features at known positions that could otherwise have been used for position computation. Thus Autonomous Underwater Vehicle (AUV) applications typically require …
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Robust planning for unmanned underwater vehicles
… between predetermined waypoints for unmanned underwater vehicles under uncertainty. The problem is first formulated as a mixed-integer optimization model and subsequently uncertainty is addressed using a robust optimization approach. Solutions were tested through simulation and computational …
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Terrain-relative navigation for autonomous underwater vehicles
Navigation is a key technology for autonomous underwater vehicles (AUVs), and currently, it limits potential and existing vehicle capabilities and applications. This thesis presents a terrain-relative navigation system for AUVs that does not require the deployment of acoustic beacons or other …
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Design considerations for engineering autonomous underwater vehicles
Autonomous Underwater Vehicles (AUVs) have been established as a viable tool for Oceanographic Sciences. Being untethered and independent, AUVs fill the gap in Ocean Exploration left by the existing manned submersible and remotely operated vehicles (ROV) technology. AUVs are attractive as cheaper …
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Feature relative navigation for automous underwater vehicles
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.
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Path planning methods for Autonomous Underwater Vehicles
… science missions, the importance of autonomous vehicles is increasing with the advances in underwater robotics technology. Due to the dynamic and intermittent underwater environment and the physical limitations of autonomous underwater vehicles, feasible and optimal path planning is crucial for …
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Terrain-relative navigation for autonomous underwater vehicles
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.
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Design considerations for engineering Autonomous Underwater Vehicles
Autonomous Underwater Vehicles (AUVs) have been established as a viable tool for Oceanographic Sciences. Being untethered and independent, AUVs fill the gap in Ocean Exploration left by the existing manned submersible and remotely operated vehicles (ROV) technology. AUVs are attractive as cheaper …
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Fault-Tolerant Control of Unmanned Underwater Vehicles
Unmanned Underwater Vehicles (UUVs) are widely used in commercial, scientific, and military missions for various purposes. What makes this technology challenging is the increasing mission duration and unknown environment. It is necessary to embed fault-tolerant control paradigms into UUVs to …
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Remote monitoring and control of autonomous underwater vehicles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.
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Route optimization under uncertainty for Unmanned Underwater Vehicles
… risk service members endure by using unmanned vehicles. These unmanned vehicles will, over time, become more independent and trustworthy in our operational military. The goal of this thesis is to improve the intelligence an unmanned vehicle has in its decision making to keep up with ever …
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Computational Design and Control of Autonomous Underwater Vehicles
Design of autonomous underwater vehicles (AUVs) currently relies heavily on rule-ofthumb techniques shared among those in the field, with many designs ending up with thousands of custom-made components that are not readily transferable to other designs made for different tasks. This is largely …
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Wave effects on underwater vehicles in shallow water
Autonomous Underwater Vehicles (AUV's) need to work in shallow water to complete oceanographic missions, coastal engineering surveys, and in military operations that involve reconnaissance and the location of mines along hostile coastlines. Control in the vertical plane is mandatory so the vehicle …
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An efficient propulsion system for small underwater vehicles
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.
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Development of a snorkel for unmanned underwater vehicles
The development of unmanned underwater vehicles (UUV) has provided a bevy of opportunities for the exploration of the ocean. However, one limitation has kept UUVs from truly becoming mass produced, its limited range. The problem with traditional snorkel designs built for submarines is that they are …
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Large-area visually augmented navigation for autonomous underwater vehicles
… imagery constraints typical of autonomous underwater vehicles (AUVs) while exploiting the inertial sensor information that is routinely available on such platforms. We adopt a systems-level approach exploiting the complementary aspects of inertial sensing and visual perception from a …
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Mechatronic design of autonomous underwater vehicles for confined spaces
… attempt to design an untethered micro autonomous underwater vehicle, mAUV, is conducted. The mechanical, electrical, control and perception system are developed through a proposed model-based mechatronic design approach. Key design tools are validated including the measurement of hydrodynamic drag …
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Feasibility of autonomous underwater vehicles for performing benthic surveys
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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