Results 11 to 20 of about 590 (174)

Verification and Validation of Hybridspectral Radiometry Obtained from an Unmanned Surface Vessel (USV) in the Open and Coastal Oceans [PDF]

open access: yesRemote Sensing, 2022
The hardware and software capabilities of the compact-profiling hybrid instrumentation for radiometry and ecology (C-PHIRE) instruments on an unmanned surface vessel (USV) are evaluated. Both the radiometers and USV are commercial-off-the-shelf (COTS) products, with the latter being only minimally modified to deploy the C-PHIRE instruments.
Stanford B. Hooker   +4 more
openaire   +4 more sources

Task assignment method for unmanned surface vessel formation based on optimal transport theory [PDF]

open access: yesZhihui kongzhi yu fangzhen
The task assignment method for a large group of unmanned surface vessel (USV) is an important research problem in the field of autonomous unmanned system.
XUE Min, QUAN Chongren, HU Zhengyang, WANG Yong
doaj   +2 more sources

Autonomous Obstacle Avoidance Algorithm for Unmanned Surface Vehicles Based on an Improved Velocity Obstacle Method

open access: yesISPRS International Journal of Geo-Information, 2021
Focusing on the collision avoidance problem for Unmanned Surface Vehicles (USVs) in the scenario of multi-vessel encounters, a USV autonomous obstacle avoidance algorithm based on the improved velocity obstacle method is proposed.
Jia Ren, Jing Zhang, Yani Cui
doaj   +2 more sources

Deep-Sea Underwater Cooperative Operation of Manned/Unmanned Submersible and Surface Vehicles for Different Application Scenarios

open access: yesJournal of Marine Science and Engineering, 2022
In this paper, we propose three cooperative operational modes of manned and unmanned submersibles for a range of different deep-sea application scenarios.
Lei Yang   +4 more
doaj   +2 more sources

Autonomous Shallow Water Hydrographic Survey Using a Proto-Type USV

open access: yesJournal of Marine Science and Engineering, 2023
Maritime unmanned systems (MUS) have gained widespread usage in a diverse range of hydrographic survey activities, including harbor/port surveys, beach and coastline monitoring, environmental assessment, and military operations.
Laurențiu-Florin Constantinoiu   +2 more
doaj   +2 more sources

Development and application of subsea pipeline detection system based on the Unmanned Surface Vessel

open access: yesYou-qi chuyun, 2021
In order to ensure the safe operation of subsea pipelines, it is necessary to perform inspection periodically. However, there are many constraints in the traditional detection methods, which limit the frequency and efficiency of subsea pipeline ...
Wenchuan FENG, Zhuo ZHAO
doaj   +2 more sources

Finite Time Trajectory Tracking with Full-State Feedback of Underactuated Unmanned Surface Vessel Based on Nonsingular Fast Terminal Sliding Mode

open access: yesJournal of Marine Science and Engineering, 2022
Marine transportation and operations have attracted the attention of more and more countries and scholars in recent years. A full-state finite time feedback control scheme is designed for the model parameters uncertainty, unknown ocean environment ...
Donghao Xu   +3 more
doaj   +2 more sources

Trajectory Tracking Control of Underactuated USV with Model Perturbation and External Interference

open access: yesMATEC Web of Conferences, 2016
This paper presents an improved trajectory tracking controller based backstepping control algorithm to address the trajectory tracking problem of an underactuated Unmanned Surface Vessel (USV).
Liu Jinbiao   +3 more
doaj   +2 more sources

Numerical Simulation of the Motion of a Large Scale Unmanned Surface Vessel in High Sea State Waves

open access: yesJournal of Marine Science and Engineering, 2021
The motion stability of the Unmanned Surface Vessel (USV) is threatened by the action of waves under a rough sea state. In the present paper, the motion of a large-scale USV is numerically simulated under high sea state of level 5 and 7. The overset grid
Shuo Huang   +3 more
doaj   +2 more sources

A Verification Method of Formation Control of USV Cluster Based on Virtual-Real Integration

open access: yes水下无人系统学报
In the research field of unmanned surface vessel(USV) technology, the verification and optimization of autonomous algorithms are crucial for advancing this technology and have important research significance for improving system reliability ...
Xiao LIANG   +5 more
doaj   +2 more sources

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