Results 21 to 30 of about 9,618 (272)

Fault Diagnosis Observer and Fault-Tolerant Control Design for Unmanned Surface Vehicles in Network Environments

open access: yesIEEE Access, 2019
This study focuses on the network-based fault estimation and fault-tolerant controller designing for an unmanned surface vehicle submit to actuator faults, along with transmission delays, packet dropouts and packet disordering in the communication ...
Zitian Zhou, Maiying Zhong, Youqing Wang
doaj   +1 more source

Object Tracking for an Autonomous Unmanned Surface Vehicle

open access: yesMachines, 2022
The conventional algorithm used for target recognition and tracking suffers from the uncertainties of the environment, robot/sensors and object, such as variations in illumination and viewpoint, occlusion and seasonal change, etc.
Min-Fan Ricky Lee, Chin-Yi Lin
doaj   +1 more source

Object tracking algorithm for unmanned surface vehicle based on improved mean-shift method

open access: yesInternational Journal of Advanced Robotic Systems, 2020
The unmanned surface vehicle has the characteristics of high maneuverability and flexibility. Object detection and tracking skills are required to improve the ability of unmanned surface vehicle to avoid collisions and detect targets on the surface of ...
Zuquan Xiang   +6 more
doaj   +1 more source

Unmanned Aerial Vehicle Surveying For Monitoring Road Construction Earthworks

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2019
Unmanned aerial vehicle photogrammetry is a surveying technique that enables generating point clouds, 3D surface models and orthophoto mosaics. These are based on photos captured with a camera placed on an unmanned aerial vehicle. Within the framework of
Kalev Julge, Artu Ellmann, Romet Köök
doaj   +1 more source

Supervisory switching control of an unmanned surface vehicle [PDF]

open access: yesOCEANS 2015 - MTS/IEEE Washington, 2015
A novel method to determine the switching of controllers to increase the performance of a system is presented. Three controllers are utilized to capture three behaviors representative of unmanned surface vehicles (USVs). An underactuated nonlinear controller is derived to transit the vehicle between locations; a fully-actuated nonlinear controller is ...
Bertaska, Ivan R.   +1 more
openaire   +2 more sources

An autonomous dynamic collision avoidance control method for unmanned surface vehicle in unknown ocean environment

open access: yesInternational Journal of Advanced Robotic Systems, 2019
There are many unknown obstacles in the sea, so the autonomous navigation of unmanned surface vehicle needs to avoid them as soon as possible even under the condition of low control ability of the controller.
Yunsheng Fan, Xiaojie Sun, Guofeng Wang
doaj   +1 more source

BINOCULAR VISUAL ENVIRONMENT PERCEPTION TECHNOLOGY FOR UNMANNED SURFACE VEHICLE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Binocular vision system is an essential way for target localization in many fields, which has been widely used as payload of unmanned surface vehicles (USV). High resolution cameras, which can provide richer information, are utilized more often on a USV.
Y. Wang   +9 more
doaj   +1 more source

Prototype Design and Experimental Evaluation of Autonomous Collaborative Communication System for Emerging Maritime Use Cases

open access: yesSensors, 2021
Automated systems have been seamlessly integrated into several industries as part of their industrial automation processes. Employing automated systems, such as autonomous vehicles, allows industries to increase productivity, benefit from a wide range of
Jiri Pokorny   +7 more
doaj   +1 more source

Fast Image-Based Obstacle Detection From Unmanned Surface Vehicles [PDF]

open access: yesIEEE Transactions on Cybernetics, 2016
This is an extended version of the ACCV2014 paper [Kristan et al., 2014] submitted to a journal. [Kristan et al., 2014] M. Kristan, J. Pers, V. Sulic, S. Kovacic, A graphical model for rapid obstacle image-map estimation from unmanned surface vehicles, in Proc. Asian Conf.
Kristan, Matej   +3 more
openaire   +3 more sources

Collision avoidance planning for unmanned surface vehicle based on eccentric expansion

open access: yesInternational Journal of Advanced Robotic Systems, 2019
The International Regulations for Preventing Collisions at Sea (COLREGS) specify certain navigation rules for ships at risk for collision. Theoretically, the safety of unmanned surface vehicles and traffic boats would be guaranteed when they comply with ...
Lifei Song   +6 more
doaj   +1 more source

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