Results 61 to 70 of about 2,444 (218)

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

IET 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

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

Complexity, 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, Lichuan Zhang, Shuo Zhang, Sheng Cao   +3 more
doaj   +1 more source

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

IET 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, Lingli Xie, Jun Xian, Fei Liao, Wenhua Wu, Mingqing Lu, Xian Yi   +6 more
wiley   +1 more source

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

IEEE 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

Design, construction, and operation of an unmanned underwater vehicle [PDF]

, 2009
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.This electronic version was submitted by the student author.
Owens, Dylan
core  

A Soft Robotic Morphing Wing for Unmanned Underwater Vehicles

Advanced Intelligent Systems, Volume 6, Issue 6, June 2024.
This study presents the design and hydrodynamic characterization of a soft wing for implementation on underwater gliders. Through hydraulic actuation, the soft wing deforms and adjusts its lift‐to‐drag ratio, which ranges from −70% to +10% with respect to a rigid wing.
Andrea Giordano, Liam Achenbach, Daniel Lenggenhager, Fabian Wiesemüller, Roger Vonbank, Claudio Mucignat, André Tristany Farinha, Pham Huy Nguyen, Robert Katzschmann, Sophie F Armanini, Ivan Lunati, Sukho Song, Mirko Kovač   +12 more
wiley   +1 more source

Effectiveness Evaluation of Intelligent UUV Target Recognition and Counter-contermeasure Based on TOPSIS with Weighting Combination

水下无人系统学报
At present, the operational environment for underwater acoustic contermeasure is increasingly complicated. The emphasis on future underwater warfare is mainly focused on the contermeasure and counter-contermeasure of intelligent underwater unmanned ...
Xu WANG, Jinming LI, Zhaoyong MAO, Wenjun DING   +3 more
doaj   +1 more source

Does Bistability Improve Swimming Performance in Robotic Fish?

Advanced Intelligent Systems, Volume 6, Issue 6, June 2024.
This study asks whether bistability is a fundamentally useful feature of swimming mechanisms, or simply a tool to overcome actuation limitations. It quantifies the effects of introducing bistability into a simple bioinspired propulsion system with variable morphology.
Tayler Bambrick, Andrew Viquerat, Robert Siddall   +2 more
wiley   +1 more source

Experimental Study and Numerical Simulation of Radiated Noise from Unmanned Underwater Vehicle

Polish Maritime Research
This paper focuses on the research of the radiation noise of underwater unmanned vehicle (UUV), which is one of the most important indicators for evaluating the performance of underwater unmanned equipment.
Zhang Chunyu, Xu Qiang, Yang He, Peng Zilong, Li Jiangqiao, Zhou Jialiang   +5 more
doaj   +1 more source

Formation control of unmanned underwater vehicles using local sensing means in absence of follower position information

International Journal of Advanced Robotic Systems, 2021
Formation control is one of the essential problems in multi-unmanned underwater vehicle (UUV) coordination. In this article, a practically oriented UUV formation control structure and method are proposed for the problem of large communication in leader ...
Zheping Yan, Da Xu, Tao Chen, Jiajia Zhou   +3 more
doaj   +1 more source