Results 61 to 70 of about 6,904 (221)

Nonlinear Control of Unmanned Surface Vehicle [PDF]

, 2016
An Unmmaned Surface Vehicle is a marine vehicle which has a complicated nonlinear model and partially uncertain parameters in its model. Therefore, an USV needs an advance control technique to solve this complicated problem.
Hasan, H. (Hasnawiya)
core  

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

, 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, Hastie, Helen, Laskov, Atanas, Liu, Xingkun, Patron, Pedro, Petillot, Yvan R., Robb, David A., Valeyrie, Nicolas, Willners, Jonatan Scharff   +8 more
core   +1 more source

MARS: Programmable multipurpose auto‐release system for aquatic observations

Limnology and Oceanography: Methods, Volume 23, Issue 6, Page 376-388, June 2025.
Abstract Aquatic biodiversity assessments are often labor‐intensive due to the large size of the equipment and the complex logistics of sea vessel operations. Traditional drift and drop cameras are typically tethered to the surface, causing cable and line clutter on sea vessels.
Marko Radeta, João Gama Monteiro, João Pestana, Dinarte Vieira, Pedro Abreu, Rodrigo Silva, Susanne Schäfer, Patrício Ramalhosa, Ana Lopez Martos, Bruno Loureiro, Nuno Queiroz, Rui Seabra, Fernando P. Lima, João Canning‐Clode   +13 more
wiley   +1 more source

An Improved Model Predictive Control for Path-Following of USV Based on Global Course Constraint and Event-Triggered Mechanism

IEEE Access, 2021
In this work we propose a solution to the Unmanned Surface Vessels (USV) path-following problem by suggesting an improved model predictive control (MPC) based on global course constraint (GCC) and event-triggered mechanism (ETM).
Baigang Zhao, Xianku Zhang, Cailei Liang, Xu Han   +3 more
doaj   +1 more source

Shipboard Landing Challenges for Autonomous Parafoils [PDF]

, 2011
21st AIAA Aerodynamic Decelerator Systems Technology Conference, Dublin, Ireland, May 23-26, 2011.This paper examines some of the challenges that must be overcome if future aerial delivery systems are to have the capability to land on the _ight deck of a
Hewgley, Charles W., Slegers, Nathan J., Yakimenko, Oleg A.   +2 more
core   +1 more source

Dual‐Layer Model Predictive Control for Multi‐Vessels Formation With Predefined‐Time and Collision‐Free Strategy

IET Control Theory &Applications, Volume 19, Issue 1, January/December 2025.
A dual‐layer formation control with a predefined‐time and collision‐free strategy is studied in this work. Its upper layer utilises performance indicators, including tracking objectives to meet tracking control requirements. The lower layer tracks those trajectories to save computational and communication resources.
Han Xue, Kaibiao Sun
wiley   +1 more source

Remote depth survey of the Charles River Basin [PDF]

, 2007
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.Includes bibliographical references (leaf 17).Unmanned vehicles may provide more time- and cost-effective methods of gathering hydrographic survey data when ...
Karlik, Evan A
core  

Autonomous boat dynamics: how far away is simulation from the high sea? [PDF]

, 2017
The study demonstrates the process of implementing a 3-degrees-of-freedom surge-sway-yaw boat dynamic model in a numeric simulation environment. Estimated environmental disturbance force introduced in the simulation provides a scope for determining boat ...
Huang, Ya, Ji, Ze
core   +1 more source

Study on key technologies for air–water surface collaboration of observation unmanned aircraft vehicle

Electronics Letters, Volume 61, Issue 1, January/December 2025.
To address the issues of short flight duration and the inability to carry high‐computation resources in small observation unmanned aerial vehicles (UAVs) due to limited energy and payload capacities, a deployment framework is proposed for an air–water surface collaborative observation system based on energy replenishment and computation offloading.
Dongying Feng, Jingfeng Yang, Nanfeng Zhang, Jinchao Xiao, Shilu Dai, Bo Peng, Jiaping Li, Junfeng Xiong, Can Cui   +8 more
wiley   +1 more source

Multi-Agent Deep Reinforcement Learning Framework Strategized by Unmanned Aerial Vehicles for Multi-Vessel Full Communication Connection

Remote Sensing, 2023
In the Internet of Vessels (IoV), it is difficult for any unmanned surface vessel (USV) to work as a coordinator to establish full communication connections (FCCs) among USVs due to the lack of communication connections and the complex natural ...
Jiabao Cao, Jinfeng Dou, Jilong Liu, Xuanning Wei, Zhongwen Guo   +4 more
doaj   +1 more source