Results 51 to 60 of about 590 (174)

A Differential Bathymetric Dataset of Anthropogenic Postmining Lake in the Glaciotectonic Muskau Arch Geopark, Poland

Geoscience Data Journal, Volume 12, Issue 3, July 2025.
Open access high‐resolution bathymetric point cloud dataset of postmining reservoir for differential analysis of lakebed augmenting studies of present‐day processes. ABSTRACT Mining has a lasting impact on the environment, not only during the active mining process but also long after operations cease.
Jan Blachowski, Jarosław Wajs, Karolina Kawałko   +2 more
wiley   +1 more source

Integrating Systems Methodologies for Australian Undersea Surveillance: A Systematic Literature Review

Systems Engineering, Volume 28, Issue 4, Page 471-497, July 2025.
ABSTRACT Australia is a maritime nation, relying on access to its surrounding oceans for its economy and security. The Royal Australian Navy conducts undersea surveillance to monitor this vital maritime environment and gain insight into activities beneath the ocean's surface.
Timothy J. Milledge, Biswajeet Pradhan, Nagesh Shukla   +2 more
wiley   +1 more source

Key Technologies and Verification of Cooperative Positioning Take-off and Landing for USVs and UAVs

水下无人系统学报
An unmanned surface vessel(USV) single-platform is easily restricted by the platform during surface mission execution, and the construction of a cross-platform system for USVs and unmanned aerial vehicles(UAVs) can realize the complementary advantages of
Bing ZHENG, Chao Dong, Han LIU, Junfeng XIONG, Chaoxiong HUANG   +4 more
doaj   +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

Set-membership filtering approach for path tracking of an unmanned surface vessel system

, 2017
In this paper, a set-membership filtering method is proposed in order to effectively track an Unmanned Surface Vessel (USV) in a dual antenna GPS positioning system.
Zhu, Jin, Jianmin Chen, Jin Zhu, Jianhua Wang, Wang, Jianhua, Zhang, Yilian, Chen, Jianmin, Yang, Fuwen, Yilian Zhang, Fuwen Yang   +9 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

UNMANNED SURFACE VESSEL LIFECYCLE SUSTAINMENT ENGINEERING INVESTIGATION

, 2023
Unmanned systems are quickly evolving capabilities that U.S. military services are pursuing to meet military needs. The Department of the Navy requires unmanned surface vessels (USV) to be forward deployed to accommodate tactical and operational needs ...
Chan, Aaron, Berger, Michael L., Kutsunai, Jonathan K., Navarrete, Nathaly D., Gomez, Patricia   +4 more
core   +1 more source

Multi-under-Actuated Unmanned Surface Vessel Coordinated Path Tracking

, 2020
Multi-under-actuated unmanned surface vehicles (USV) path tracking control is studied and decoupled by virtue of decentralized control. First, an improved integral line-of-sight guidance strategy is put forward and combined with feedback control to ...
Jianqiang Zhang, Zefang Li, Zhong Liu
core   +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

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