Results 41 to 50 of about 6,904 (221)

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

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

open access: yesPolish 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   +3 more
doaj   +1 more source

Trajectory tracking control of underactuated USV based on modified backstepping approach

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2015
This paper presents a state feedback based backstepping control algorithm to address the trajectory tracking problem of an underactuated Unmanned Surface Vessel (USV) in the horizontal plane.
Zaopeng Dong   +4 more
doaj   +1 more source

Pembangunan Sistem Penentuan Posisi dan Navigasi Berbasiskan Sistem Unmanned Surface Vehicle (USV) untuk Survei Batimetri [PDF]

open access: yes, 2014
Unmanned Surface Vehicle (USV) refers to any vehicle that operates on the surface of the water without a crew. Nowadays, not only for military purpose, many of civilian purposes was also taken in considerations Operating the ordinary hydrographic vessel ...
C, N. M. (Ni), Suwardhi, D. (Deni)
core  

A multi-layered fast marching method for unmanned surface vehicle path planning in a time-variant maritime environment [PDF]

open access: yes, 2017
Concerns regarding the influence of the marine environment, such as surface currents and winds, on autonomous marine vehicles have been raised in recent years.
Bucknall, R, Liu, Y, Song, R
core   +1 more source

Autonomous Antidisturbance Flight Control of Tilt‐Rotor UAV in Complex Environment of Ultralow Altitude

open access: yesInternational Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
In our work, an algorithm is presented for tilt‐rotor UAV clusters in an unknown complex environment, which addresses the challenge of navigating and positioning in complex unknown environments without external navigation and positioning information.
Liben Yang   +4 more
wiley   +1 more source

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   +1 more source

Aerial Localization and Navigation for Surveillance of Large, Featureless, GNSS‐Denied Maritime Environments

open access: yesJournal of Field Robotics, Volume 42, Issue 8, Page 4215-4235, December 2025.
ABSTRACT In this study, we tackle the problem of surveilling a large area over the sea without access to the global navigation satellite system (GNSS) while searching for the known target vessel. The system utilizes an unmanned aerial vehicle (UAV) equipped with long‐range radio frequency (LoRa) localization and an RGB camera to detect the target ...
Marijana Peti   +10 more
wiley   +1 more source

Quantifying, predicting, and exploiting uncertainties in marine environments [PDF]

open access: yes, 2016
Following the scientific, technical, and field trial initiatives ongoing since the Maritime Rapid Environmental Assessment (MREA) conferences in 2003, 2004, and 2007, the MREA10 conference provided a timely opportunity to review the progress on various ...
Lermusiaux, Pierre   +2 more
core   +4 more sources

Robust Adaptive Neural Cooperative Control for the USV-UAV Based on the LVS-LVA Guidance Principle

open access: yesJournal of Marine Science and Engineering, 2022
Around the cooperative path-following control for the underactuated surface vessel (USV) and the unmanned aerial vehicle (UAV), a logic virtual ship-logic virtual aircraft (LVS-LVA) guidance principle is developed to generate the reference heading ...
Jiqiang Li, Guoqing Zhang, Bo Li
doaj   +1 more source

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