Results 91 to 100 of about 4,134,186 (209)

An intelligent, heuristic path planner for multiple agent unmanned air systems

, 2015
In situ observations of atmospheric variables are currently obtained with radiosondes, collecting data along uncontrolled trajectories. As an alternative, we propose an unmanned air system comprising a swarm of unmanned aerial vehicles, released from ...
Chris Crispin, Sobester, Andras, Andras Sobester, Crispin, Chris   +3 more
core   +1 more source

On the derivation and analysis of decision architectures for unmanned aircraft systems

, 2013
©Cranfield University © BAE SystemsOperation of Unmanned Air Vehicles (UAVs) has increased significantly over the past few years. However, routine operation in non-segregated airspace remains a challenge, primarily due to nature of the environment and ...
Patchett, C H
core   +2 more sources

Extreme Learning-Based Robust Adaptive Path Tracking Control of Underactuated Unmanned Surface Vessel

水下无人系统学报
An extreme learning-based robust adaptive path tracking control scheme was proposed for underactuated unmanned surface vessels(USVs) with unknown dynamics, parameter uncertainties, and disturbances.
Xinyu HE, Ning WANG, Haojun WU
doaj   +1 more source

Unmanned Surface Vessel–Unmanned Aerial Vehicle Cooperative Path Following Based on a Predictive Line of Sight Guidance Law

Journal of Marine Science and Engineering
This paper explores the cooperative control of unmanned surface vessels (USVs) and unmanned aerial vehicles (UAVs) in maritime rescue and coastal surveillance.
Hugan Zhang, Jiaming Fan, Xianku Zhang, Haitong Xu, C. Guedes Soares   +4 more
doaj   +1 more source

Adaptive Yaw Control for an Unmanned Surface Vessel System with Transient Error Analysis

Journal of Marine Science and Engineering
In this paper, an adaptive tracking control technique is proposed to stabilize the yaw angle of an unmanned surface vessel (USV) system subject to input saturation and external disturbances.
Zhonggang Xiong, Tianpeng Huang, Huishuang Shao, Xiaozhao Jin   +3 more
doaj   +1 more source

Fixed-Time Formation Control for Multi-Unmanned Surface Vessel Systems with Input Delay

水下无人系统学报
In recent years, fixed-time formation control has become a major research focus in multi-unmanned surface vessel(USV) systems. A critical challenge in achieving fixed-time formation in these systems is handling input delays.
Jianxiang LI, Wenle ZHANG, Ming LI
doaj   +1 more source

Design and implement of a trimaran unmanned surface vehicle system

, 2007
This paper describes recent research on system design of a Trimaran Unmanned Surface Vehicle (TUSV) control system and a control scheme for such a vehicle.
Wang H(王贺), Qi JT(齐俊桐), Peng Y(彭艳), Han JD(韩建达)   +3 more
core  

Active modeling based course control of unmanned surface vehicles

, 2009
Model uncertainties and external disturbances extensively exist in Unmanned Surface Vehicle (USV) systems, which will greatly deteriorate the autonomous ability.
Huang QJ(黄庆九), He YQ(何玉庆), Peng Y(彭艳), Han JD(韩建达)   +3 more
core  

Solving Heterogeneous USV Scheduling Problems by Problem-Specific Knowledge Based Meta-Heuristics with Q-Learning

Mathematics
This study focuses on the scheduling problem of heterogeneous unmanned surface vehicles (USVs) with obstacle avoidance pretreatment. The goal is to minimize the overall maximum completion time of USVs.
Zhenfang Ma, Kaizhou Gao, Hui Yu, Naiqi Wu   +3 more
doaj   +1 more source

Study of the Control System for an Unmanned Surface vechile

, 2013
A control system architecture is designed for an unmanned surface vehicle. The composing and function of the modules of the control system architecture are detailed.
Li W(李为), Feng XS(封锡盛), Li YP(李一平)   +2 more
core