Results 41 to 50 of about 1,213,963 (193)

UAV collision avoidance: a specific acceleration matching approach [PDF]

open access: yes, 2011
Includes abstract.Includes bibliographical references.An increased level of autonomy is required for future Unmanned Aerial Vehicle (UAV) missions. One of the technologies required for this to occur is an adequate sense and avoid system to enable the UAV
Patel, Amir
core   +1 more source

Quadrotor UAV Altitude Control Using FOPID, PID and Integral State Feedback Controller

open access: yesProceedings
This research presents the development of an altitude control for a quadrotor unmanned aerial vehicle (UAV) using a fractional-order proportional-integral-derivative (FOPID) controller, a proportional-integral-derivative (PID) controller, and an integral
Abubakar Umar   +5 more
doaj   +1 more source

Trajectory tracking control for a quadrotor UAV via extended state observer

open access: yesSystems Science & Control Engineering, 2018
In this paper, the PD-type trajectory tracking controllevnr with the extended state observer (ESO) is proposed for the quadrotor unmanned aerial vehicle (UAV) to deal with the wind disturbance.
Wendong Gai   +3 more
doaj   +1 more source

Fuzzy-Genetic Control of Quadrotors Unmanned Aerial Vehicles

open access: yesInterdisciplinary Description of Complex Systems : INDECS, 2016
This article presents a novel fuzzy identification method for dynamic modelling of quadrotor unmanned aerial vehicles. The method is based on a special parameterization of the antecedent part of fuzzy systems that results in fuzzy-partitions for antecedents.
openaire   +2 more sources

Autonomous Collision avoidance for Unmanned aerial systems [PDF]

open access: yes, 2014
Unmanned Aerial System (UAS) applications are growing day by day and this will lead Unmanned Aerial Vehicle (UAV) in the close future to share the same airspace of manned aircraft.This implies the need for UAS to define precise safety standards ...
Melega, Marco
core   +2 more sources

Robust Backstepping Control Combined with Fractional-Order Tracking Differentiator and Fractional-Order Nonlinear Disturbance Observer for Unknown Quadrotor UAV Systems

open access: yesApplied Sciences, 2022
In this paper, we studied a fractional-order robust backstepping control (BSC) combined with a fractional-order tracking differentiator and a fractional-order nonlinear disturbance observer for a quadrotor unmanned aerial vehicle (UAV) system.
Sungbum Park, Seongik Han
doaj   +1 more source

Goal-Aware Robocentric Mapping and Navigation of a Quadrotor Unmanned Aerial Vehicle

open access: yesJournal of Aerospace Information Systems, 2021
This paper proposes an autonomous navigation solution for an unmanned aerial vehicle (UAV) in an unknown and Global Navigation Satellite System (GNNS)-denied environment using a goal-aware robocent...
Srijanee Biswas, Rajnikant Sharma
openaire   +3 more sources

Bioinspired Autonomous Visual Vertical Control of a Quadrotor Unmanned Aerial Vehicle [PDF]

open access: yesJournal of Guidance, Control, and Dynamics, 2015
Near-ground maneuvers, such as hover, approach, and landing, are key elements of autonomy in unmanned aerial vehicles. Such maneuvers have been tackled conventionally by measuring or estimating the velocity and the height above the ground, often using ultrasonic or laser range finders.
Alkowatly, Mohamad T.   +2 more
openaire   +4 more sources

Design and hardware-in-the-loop test of the embedded control system of an indoor quadrotor helicopter [PDF]

open access: yes, 2008
The paper deals with the quick prototype design and hardware-in-the-loop real-time test of the embedded control system of an indoor miniature quadrotor helicopter (UAV) before first flight.
Lantos, Béla   +5 more
core   +2 more sources

ATSUKF-Based Actuator Health Assessment Method for Quad-Copter Unmanned Aerial Vehicles

open access: yesDrones, 2022
The actuator, which generally consists of motors, electrical regulations, and propellers, is the key component of the quadrotor Unmanned Aerial Vehicle.
Zhenxin Zhang   +4 more
doaj   +1 more source

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