Results 61 to 70 of about 837 (212)

Thruster Modeling and Controller Design for Unmanned Underwater Vehicles (UUVs) [PDF]

open access: yes, 2009
Thruster modeling and control is the core of underwater vehicle control and simulation, because it is the lowest control loop of the system; hence, the system would benefit from accurate and practical modeling of the thrusters. In unmanned underwater vehicles, thrusters are generally propellers driven by electrical motors.
openaire   +1 more source

Pose‐graph underwater simultaneous localization and mapping for autonomous monitoring and 3D reconstruction by means of optical and acoustic sensors

open access: yesJournal of Field Robotics, Volume 41, Issue 8, Page 2543-2563, December 2024.
Abstract Modern mobile robots require precise and robust localization and navigation systems to achieve mission tasks correctly. In particular, in the underwater environment, where Global Navigation Satellite Systems cannot be exploited, the development of localization and navigation strategies becomes more challenging.
Alessandro Bucci   +2 more
wiley   +1 more source

수중 가시광 통신을 이용한 UUV의 제어 연구

open access: yes, 2022
Aged port facilities and water tanks require inspection and diagnosis to check for damage. Previously, A diver dived underwater and inspected offshore structures, but recently, the inspection of offshore structures using UUV is increasing.
김승현
core  

Multi-UUV Cooperative Dynamic Maneuver Decision-Making Algorithm Using Intuitionistic Fuzzy Game Theory

open access: yesComplexity, 2020
In this paper, a multi-unmanned underwater vehicle (UUV) cooperative dynamic maneuver decision-making algorithm is proposed based on the combination of game theory and intuitionistic fuzzy sets.
Lu Liu   +3 more
doaj   +1 more source

Head Horn Enhances Hydrodynamic Perception in Eyeless Cavefish

open access: yesAdvanced Science, Volume 11, Issue 44, November 26, 2024.
Blind Chinese cavefish have evolved a unique head horn structure, which is a convergent feature in the eyesight‐reduced cavefish species. In this work, the structure‐function relationships of this specific head horn structure are systemically investigated, adequately revealing that it can enhance hydrodynamic perception and facilitate underwater ...
Zhiqiang Ma   +10 more
wiley   +1 more source

Penegakan Kedaulatan dan Hukum terhadap Masuknya Underwater Unmanned Vehicle (Uuv) di Perairan Selayar Indonesia

open access: yes, 2021
Penelitian ini bertujuan untuk menganalisis penegakan kedaulatan dan penegakan hukum terhadap masuknya Underwater Unmanned Vehicle (UUV) atau Sea Glider yang berada di Perairan Selayar Indonesia.
Ajita, S. T. (Sekar)   +1 more
core  

Communication and Networking Technologies for Unmanned Underwater Vehicle Swarms: A Survey

open access: yesIEEE Open Journal of the Communications Society
In modern network systems, unmanned underwater vehicle (UUV) swarms are crucial for enabling flexible, resilient, and efficient communication, ensuring real-time coordination, and optimizing resource usage for large-scale, complex underwater missions ...
Tianyi Ma, Sai Zeng, Yanling Zhou
doaj   +1 more source

Dual‐state and self‐oscillating wireless charging system topology for direct‐drive battery

open access: yesIET Power Electronics, Volume 17, Issue 15, Page 2498-2514, 25 November 2024.
A novel topology with bi‐stable controlling for wireless charging system is proposed. The innovation of this method lies in treating the coupler as a current transformer, which enables more direct and simpler controlling of the charging current. The advantages of the proposal are that a desired charging current can be directly output from rectifier ...
Bo Li, Bao Zhang, Kai Xie
wiley   +1 more source

Reinforcement learning‐based finite‐time cross‐media tracking control for a cross‐media vehicle under unknown dynamics and disturbances

open access: yesIET Control Theory &Applications, Volume 18, Issue 11, Page 1475-1490, July 2024.
A reinforcement learning framework is constructed to handle the unknown dynamics and environmental disturbances and achieve the optimal control performance. Combining the reinforcement learning technique, we develop the reinforcement learning‐based finite‐time control strategy without the singularity issue, which exhibits good robustness and provides ...
Shichong Wu   +6 more
wiley   +1 more source

Energy-based guidance of an underactuated unmanned underwater vehicle on a helical trajectory

open access: yes, 2015
This paper presents a motion control system for guidance of an underactuated Unmanned Underwater Vehicle (UUV) on a helical trajectory. The control strategy is developed using Port-Hamiltonian theory and interconnection and damping assignment passivity ...
Perez, Tristan   +2 more
core   +1 more source

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