Results 51 to 60 of about 725 (179)

Design of Small Unmanned Surface Vehicle with Autonomous Navigation System

Inventions, 2021
Maintaining ecosystems is one of the current leading public concerns. Some of the pressing problems that threaten water resources are pollution of water bodies with floating debris, illegal extraction of water resources, wear and tear of underwater ...
Georgii Kolev, Seyed Nima Tayarani Bathaie, Vyacheslav Rybin, Maksim Kulagin, Timur Karimov   +4 more
doaj   +1 more source

Risk‐aware autonomous search and rescue with multiagent reinforcement learning

Risk Analysis, Volume 45, Issue 12, Page 4490-4504, December 2025.
Abstract Autonomous navigation in dynamic high‐consequence environments, such as search and rescue (SAR) missions, often relies on multiagent robotic systems that need to learn and adapt to changing conditions. Adversarial risks can introduce further challenges in such a setting where an autonomous agent may exhibit deviations in their learned actions ...
Aowabin Rahman, Salman Shuvo, Samrat Chatterjee, Mahantesh Halappanavar, Terje Aven   +4 more
wiley   +1 more source

A Novel Target Detection Method of the Unmanned Surface Vehicle under All-Weather Conditions with an Improved YOLOV3

Sensors, 2020
The USV (unmanned surface vehicle) is playing an important role in many tasks such as marine environmental observation and maritime security, for the advantages of high autonomy and mobility.
Yan Li, Jiahong Guo, Xiaomin Guo, Kaizhou Liu, Wentao Zhao, Yeteng Luo, Zhenyu Wang   +6 more
doaj   +1 more source

Geophysical Prospecting for the Detection of Buried and Shallow Submerged Archaeological Sites of Roman Period in the Lagoon of Venice (Italy)

Archaeological Prospection, Volume 32, Issue 4, Page 1005-1019, October/December 2025.
ABSTRACT We present a study that combines several marine geophysical techniques to detect and map archaeological sites from the Roman period in the shallow waters of the Venice Lagoon, Italy. We employed marine electrical resistivity tomography (M‐ERT), a drone‐based unmanned surface vehicle (USV) multibeam sonar, and subbottom profiler technology to ...
Carlo Beltrame, Elisa Costa, Paolo Mozzi, Alberto Carrera, Jacopo Boaga   +4 more
wiley   +1 more source

STag marking visual guidance method for USV docking

Zhongguo Jianchuan Yanjiu
ObjectiveAiming at the problem of accurate real-time pose acquisition in the autonomous recovery of an unmanned surface vehicle (USV), a STag marking visual guidance method for unmanned vehicle docking and recovery is proposed.Methods Due to the stable ...
Yongxin XIAO, Xianbo XIANG, Dian KONG, Lichun YANG, Shaolong YANG   +4 more
doaj   +1 more source

Application of USV to maritime safety supervision

Zhongguo Jianchuan Yanjiu, 2018
The maritime safety supervision such as patrol and emergency disposal has the characteristics of broad regulatory waters,rapid emergency response demand,high rescue capacity demand etc.
LI Feng, YI Hong
doaj   +1 more source

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

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

A 3 Ft Gurindam Unmanned Surface Vehicle (USV) Stability Hullform Performance

Jurnal Teknologi dan Riset Terapan (JATRA), 2020
3 ft Gurindam Unmanned Surface Vehicle (USV) showed unmaximal performance when it tested on the water. Uncalm movement, unmaximal speed indicated that something need to be checked and make sure to the USV so that it can maximize the performance. The USV is owned by Politeknik Negeri Batam, it’s 3 feet long, with single hull type, fuel engine motor and ...
Anauta Lungiding Angga Risdianto, Naufal Abdurrahman Prasetyo, Sapto Wiratno Satoto   +2 more
openaire   +1 more source