Results 61 to 70 of about 590 (174)

PBM‐YOLO: A Performance Balanced Floating Garbage Detection Model for Water Surface Environments

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
We propose a lightweight detection model, PBM‐YOLO, for floating garbage detection on water surfaces. Based on YOLOv8n, the model introduces a feature extraction module (FSEM) that integrates frequency and spatial information to enhance object representation.
Yazheng Hou, Yuanhui Yu
wiley   +1 more source

A MILP Model and Two‐Stage Heuristic Algorithm for Vehicle‐Assisted Multi‐Drone Inspection Routing Problem

open access: yesIET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
This paper presents a novel solution for the vehicle‐assisted multi‐drone inspection routing problem (VAMDIRP) using a mixed‐integer linear programming (MILP) model solvable by GUROBI for small instances and a two‐stage heuristic algorithm for larger cases.
Yuanqing Xia   +5 more
wiley   +1 more source

Parameter optimization of unmanned surface vessel propulsion motor based on BAS-PSO

open access: yesInternational Journal of Advanced Robotic Systems, 2022
Despite advances in modern control theory and artificial intelligence technology, current methods for tuning proportional-integral-derivative (PID) controller parameters based on the traditional particle swarm optimization (PSO) algorithm do not meet the
Li Bian   +4 more
doaj   +1 more source

Ship Formation Control Using Nonlinear Model Predictive Control With Safe Speed Constraints and Tidal Elevation Variations

open access: yesIET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.
1. An adaptive speed control method is proposed to execute the ship formation trajectory tracking task more efficiently and safely while entering port with tidal elevation variations. 2. A distributed ship formation controller based on the leader‒follower structure is designed to govern the coordinated motion of formation members more flexibly. 3.
Fanglie Wu   +4 more
wiley   +1 more source

Research on Trajectory Reconstruction Method Using Automatic Identification System Data for Unmanned Surface Vessel

open access: yesIEEE Access, 2019
The unmanned surface vessel (USV) trajectory with spatial and temporal information plays an important role in its positioning and navigation. Unlike traditional trajectory reconstruction methods, this paper proposes a novel method based on the automatic ...
Binghua Shi   +4 more
doaj   +1 more source

Model Predictive Control for Autonomous UAV Landings: A Comprehensive Review of Strategies, Applications and Challenges

open access: yesThe Journal of Engineering, Volume 2025, Issue 1, January/December 2025.
This review examines model predictive control (MPC) strategies for autonomous UAV landings, focusing on dynamic environments, constrained operations, and real‐time adaptability. It categorizes approaches into six key domains, highlights MPC's strengths in precision and constraint handling, and identifies critical limitations such as computational ...
Kesavan Panjavarnam   +4 more
wiley   +1 more source

Three-Dimensional Reconstruction of a Marine Floating Structure With an Unmanned Surface Vessel

open access: yes, 2019
This paper addresses 3-D reconstruction of a marine floating platform using an unmanned surface vessel  (USV). Lidar and sonar sensors equipped on the USV are used to gather volumetric point cloud data of the floating platform structure both ...
Han, Jungwook, Kim, Jinwhan
core   +1 more source

GL‐LoiterDNet: A Hybrid Model for Ship Trajectory Prediction in Loitering Activity Scenarios

open access: yesJournal of Advanced Transportation, Volume 2025, Issue 1, 2025.
In loitering activity scenarios, vessels frequently execute course changes within localized maritime spaces, often exhibiting extreme turning maneuvers that generate ultralong, dense, and highly nonlinear spatiotemporal trajectories. Traditional prediction models demonstrate limitations in processing dynamically changing trajectory features, leading to
Liang Huang   +6 more
wiley   +1 more source

MISSION ENGINEERING METHODOLOGY FOR REALIZATION OF UNMANNED SURFACE VESSEL OPERATIONS [PDF]

open access: yes, 2022
The Navy has included unmanned systems as a key enabler for the future fleet. Congress has mandated that the Navy (PMS 406) provide demonstrated testing and documentation sufficient to support transition of Unmanned Surface Vessels (USVs) from prototype ...
Doyle, Raffianne N.
core  

Study on path planning of unmanned surface vessel based on data-driven genetic algorithm

open access: yes智能科学与技术学报, 2019
The genetic algorithm (GA) is an effective method for the path planning system of unmanned surface vessel (USV),but it is easy to fall into local optimal precocity and converges slowly.For this,without increasing the complexity of the algorithm,a data ...
Junfeng XIN   +4 more
doaj  

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