Results 21 to 30 of about 8,501 (161)

Reinforcement Learning for Autonomous Underwater Vehicles via Data-Informed Domain Randomization

open access: yesApplied Sciences, 2023
Autonomous Underwater Vehicles (AUVs) or underwater vehicle-manipulator systems often have large model uncertainties from degenerated or damaged thrusters, varying payloads, disturbances from currents, etc. Other constraints, such as input dead zones and
Wenjie Lu, Kai Cheng, Manman Hu
doaj   +1 more source

Acoustic positioning and tracking in Portsmouth Harbour, New Hampshire [PDF]

open access: yes, 2007
Portsmouth Harbor, New Hampshire, is frequently used as a testing area for multibeam and sidescan sonars, and is the location of numerous ground-truthing studies. Having the ability to accurately position underwater sensors is an important aspect of this
Huff, Lloyd C   +5 more
core   +2 more sources

Optimizing Underwater Game Strategy Based on Cooperative Confrontation

open access: yesXibei Gongye Daxue Xuebao, 2019
Based on the multi-round confrontation of multiple Autonomous Underwater Vehicles (AUVS), the concept of Nash equilibrium is used to solve the problem of underwater dynamic cooperative confrontation of multiple AUVs. From the perspective of confrontation

doaj   +1 more source

A Multi-Source-Data-Assisted AUV for Path Cruising: An Energy-Efficient DDPG Approach

open access: yesRemote Sensing, 2023
As marine activities expand, deploying underwater autonomous vehicles (AUVs) becomes critical. Efficiently navigating these AUVs through intricate underwater terrains is vital.
Tianyu Xing   +4 more
doaj   +1 more source

Improving the energy efficiency of autonomous underwater vehicles by learning to model disturbances [PDF]

open access: yes, 2013
Energy efficiency is one of the main challenges for long-term autonomy of AUVs (Autonomous Underwater Vehicles). We propose a novel approach for improving the energy efficiency of AUV controllers based on the ability to learn which external disturbances ...
Caldwell, DG, Kormushev, P
core   +1 more source

Navigation Control and Signal Processing Methods for Multiple Autonomous Unmanned Systems

open access: yesApplied Sciences
Autonomous underwater vehicles (AUVs) have been widely deployed in numerous underwater applications, such as biological monitoring, oceanographic surveys, and military underwater surveillance [...]
Haoqian Huang, Bing Wang, Yuan Yang
doaj   +1 more source

Multi-AUV Control Method Based on Inverse Optimal Control of Integrated Obstacle Avoidance Algorithm

open access: yesApplied Sciences, 2023
Under complex underwater conditions, multiple AUVs work in one area and they need to cooperate for complicated missions. In this study, a design method was applied for multiple autonomous underwater vehicles (AUVs) that are distributed in an area and ...
Gang Shao, Lei Wan, Huixi Xu
doaj   +1 more source

Experimental Verification of a Depth Controller using Model Predictive Control with Constraints onboard a Thruster Actuated AUV [PDF]

open access: yes, 2012
In this work a depth and pitch controller for an autonomous underwater vehicle (AUV) is developed. This controller uses the model predictive control method to manoeuvre the vehicle whilst operating within the defined constraints of the AUV actuators ...
Furlong, M.   +4 more
core   +1 more source

A Natural Language Interface with Relayed Acoustic Communications for Improved Command and Control of AUVs

open access: yes, 2018
Autonomous underwater vehicles (AUVs) are being tasked with increasingly complex missions. The acoustic communications required for AUVs are, by the nature of the medium, low bandwidth while adverse environmental conditions underwater often mean they are
Garcia, Francisco J. Chiyah   +8 more
core   +1 more source

Optimal path shape for range-only underwater target localization using a Wave Glider [PDF]

open access: yes, 2018
Underwater localization using acoustic signals is one of the main components in a navigation system for an autonomous underwater vehicle (AUV) as a more accurate alternative to dead-reckoning techniques.
Aguzzi, Jacopo   +6 more
core   +2 more sources

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