Results 101 to 110 of about 115,291 (290)

Consensus Control of Second-Order Multiagent Systems with Particle Swarm Optimization Algorithm

open access: yesJournal of Control Science and Engineering, 2018
This paper considers the consensus problem of second-order multiagent systems. Firstly, an improved consensus control protocol is proposed. Then, the convergence of the proposed control protocol is analyzed by applying Lyapunov stability theory. In order
Xiongfeng Deng   +3 more
doaj   +1 more source

Automated Cinematography with Unmanned Aerial Vehicles

open access: yesCoRR, 2017
The rise of Unmanned Aerial Vehicles and their increasing use in the cinema industry calls for the creation of dedicated tools. Though there is a range of techniques to automatically control drones for a variety of applications, none have considered the problem of producing cinematographic camera motion in real-time for shooting purposes. In this paper
Quentin Galvane   +3 more
openaire   +2 more sources

Uncertainty assessment for a novel optically shallow water radiometric acquisition platform

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract We present a novel motorized platform, a custom‐built jet‐ski designed for acoustic and radiometric measurements in optically shallow coastal waters. This platform integrates in‐water radiometers with single‐beam and multi‐beam acoustic sensors, along with a suite of active and passive instruments (conductivity‐temperature‐depth, fluorescence,
Raphaël Mabit   +2 more
wiley   +1 more source

Affine Formation Maneuver Control for Multi-Agent Based on Optimal Flight System

open access: yesApplied Sciences
The use of affine maneuver control to maintain the desired configuration of unmanned aerial vehicle (UAV) swarms has been widely practiced. Nevertheless, the lack of capability to interact with obstacles and navigate autonomously could potentially limit ...
Chao Kang, Jihui Xu, Yuan Bian
doaj   +1 more source

Consensus Control of Time-Varying Delayed Multiagent Systems with High-Order Iterative Learning Control

open access: yesInternational Journal of Aerospace Engineering, 2018
We address the consensus control problem of time-varying delayed multiagent systems with directed communication topology. The model of each agent includes time-varying nonlinear dynamic and external disturbance, where the time-varying nonlinear term ...
Xiongfeng Deng   +3 more
doaj   +1 more source

Perception is Everything: Repairing the Image of American Drone Warfare [PDF]

open access: yes, 2018
This thesis will trace the United States’ development of unmanned warfare from its initial use in the World Wars through the Cold War to its final maturation in the War on Terror.
Tubbs, Luke
core   +1 more source

Below Horizon Aircraft Detection Using Deep Learning for Vision-Based Sense and Avoid

open access: yes, 2019
Commercial operation of unmanned aerial vehicles (UAVs) would benefit from an onboard ability to sense and avoid (SAA) potential mid-air collision threats. In this paper we present a new approach for detection of aircraft below the horizon.
Ford, Jason J.   +2 more
core   +1 more source

Marine litter can shift sea turtle nests toward the shoreline

open access: yesOikos, EarlyView.
Marine litter is an emerging threat to sea turtle rookeries, yet its effects on nesting behaviour remain poorly understood. In this study, we investigated how macro‐litter accumulation on beaches influences the spatial distribution of loggerhead turtle Caretta caretta nests on Boa Vista Island, Cabo Verde.
Diana Sousa‐Guedes   +4 more
wiley   +1 more source

Mitigating ground effect on mini quadcopters with model reference adaptive control [PDF]

open access: yes, 2019
Mitigating ground effect becomes a big challenge for autonomous aerial vehicles when they are flying in close proximity to the ground. This paper aims to develop a precise model of ground effect on mini quadcopters, provide an advanced control algorithm ...
Chan, SN, Kong, Z, Lee, S, Wei, P
core  

The Need for Fundamental Photovoltaics Research to Ensure Energy Security

open access: yesProgress in Photovoltaics: Research and Applications, EarlyView.
The center of this graphic focuses on the core of this paper—that fundamental research is central to the continued development of the photovoltaic (PV) industry. To the left, we have depictions of what is being studied—PV materials, PV cell structures, and PV module structures.
Rebecca Saive   +14 more
wiley   +1 more source

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