Results 31 to 40 of about 4,872,971 (182)

Neural Network-Based Adaptive Sigmoid Circular Path-Following Control for Underactuated Unmanned Surface Vessels under Ocean Disturbances

Journal of Marine Science and Engineering, 2023
This study describes a circular curve path-following controller for an underactuated unmanned surface vessel (USV) experiencing unmodeled dynamics and external disturbances. Initially, a three degrees of freedom kinematic model of the USV is proposed for
Yi Ren, Lei Zhang, Wenbin Huang, Xi Chen
doaj   +1 more source

Operative Unmanned Surface Vessels (USVs): A Review of Market-Ready Solutions

Automation
Unmanned Surface Vehicles (USVs) have emerged as key enablers of autonomous maritime operations, offering innovative solutions across multiple industries, including defense, oceanography, offshore energy, and logistics. This review examines the current state of operative USVs, analyzing their technological evolution, design characteristics, and ...
Emerson Martins de Andrade, Joel Sena Sales, Antonio Carlos Fernandes   +2 more
openaire   +2 more sources

Unmanned Surface Vessel Assisted Maritime Wireless Communication Toward 6G: Opportunities and Challenges

, 2022
Sixth generation (6G) mobile communication aims to construct an autonomous network architecture with human-like consciousness and intelligence. 6G mobile technology is expected to integrate space, air, ground, and sea networks to provide full-dimensional
Lin, Min, Ding, Changfeng, Zhang, Hua, Wang, Jun-Bo, Zeng, Cheng, Wang, Jiangzhou   +5 more
core   +2 more sources

Formation Control for UAV-USVs Heterogeneous System with Collision Avoidance Performance

Journal of Marine Science and Engineering, 2023
This paper investigates the cooperative formation trajectory tracking problem for heterogeneous unmanned aerial vehicle (UAV) and multiple unmanned surface vessel (USV) systems with collision avoidance performance.
Yuyang Huang, Wei Li, Jun Ning, Zhihui Li   +3 more
doaj   +1 more source

A validated 3D point‐cloud analysis workflow for the creation of seagrass canopy height models

Methods in Ecology and Evolution, EarlyView.
Abstract Seagrasses support highly productive ecosystems in both temperate and tropical waters and provide essential ecosystem services. Despite their importance, the vertical structure of seagrasses (i.e. the canopy) remains poorly characterised at the microscale, even though it is a strong predictor of ecological processes that influence both ...
Daniele Ventura
wiley   +1 more source

Underactuated Coupled Nonlinear Adaptive Control Synthesis Using U-Model for Multivariable Unmanned Marine Robotics

IEEE Access, 2020
This paper presents the control modelling and synthesis using a coupled multivariable under-actuated nonlinear adaptive U-model approach for an unmanned marine robotic platform.
Nur Afande Ali Hussain, Syed Saad Azhar Ali, Mark Ovinis, Mohd Rizal Arshad, Ubaid M. Al-Saggaf   +4 more
doaj   +1 more source

Radio Frequency Fingerprint Identification Based on Logarithmic Power Cosine Spectrum

IEEE Access, 2022
With the development of new Internet of Things (IoT) applications, such as unmanned ground vehicle (UGV), unmanned aerial vehicle (UAV), and unmanned surface vessel (USV), the security of wireless device identification is getting more and more attention.
Jingbo Zhang, Qingwen Wang, Xiaochen Guo, Xiaohan Zheng, Da Liu   +4 more
doaj   +1 more source

Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search

Journal of Field Robotics, Volume 43, Issue 2, Page 561-577, March 2026.
ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud, Zikai Jia, Siyuan Yang, Muhayy Ud Din, Lakmal Seneviratne, Shaoming He, Irfan Hussain   +6 more
wiley   +1 more source

Pembuatan Konsep Desain Unmanned Surface Vehicle (USV) untuk Monitoring Wilayah Perairan Indonesia [PDF]

, 2017
Indonesia dengan luas wilayah laut hampir dua pertiga dari luas daratanya, menjadi perhatian khusus dari pemerintah untuk melindungi keamanan dan kedaulatan Negara Kesatuan Republik Indonesia (NKRI).
Hardianto, Dwiko
core   +3 more sources

Heading Control System Design for a Micro-USV Based on an Adaptive Expert S-PID Algorithm

Polish Maritime Research, 2018
The process of heading control system design for a kind of micro-unmanned surface vessel (micro-USV) is addressed in this paper and a novel adaptive expert S-PID algorithm is proposed. First, a motion control system for the micro-USV is designed based on
Miao Runlong, Dong Zaopeng, Wan Lei, Zeng Jiangfeng   +3 more
doaj   +1 more source