Results 1 to 10 of about 800 (166)

A wavelet neural control scheme for a quadrotor unmanned aerial vehicle. [PDF]

Philos Trans A Math Phys Eng Sci, 2018
Wavelets are designed to have compact support in both time and frequency, giving them the ability to represent a signal in the two-dimensional time–frequency plane. The Gaussian, the Mexican hat and the Morlet wavelets are crude wavelets that can be used only in continuous decomposition.
Jurado F, Lopez S.
europepmc   +4 more sources

Adaptive Control of Quadrotor Unmanned Aerial Vehicle With Time-Varying Uncertainties [PDF]

IEEE Access, 2023
This paper studies the real-time parameter estimation and adaptive tracking control problem for a six degrees of freedom (6-DOF) of quadrotor unmanned aerial vehicle (UAV) as an under-actuated system. A virtual proportional derivative (PD) is proposed to
Imil Hamda Imran, Rustam Stolkin, Allahyar Montazeri   +2 more
doaj   +3 more sources

Dynamic characteristics analysis of quadrotor unmanned aerial vehicle

Xibei Gongye Daxue Xuebao
Because of the unstable flight state caused by the excessive vibration of the support arms of a quadrotor unmanned aerial vehicle(UAV), its finite element analysis is carried out with the Nastran, and its vibration analysis are also carried out for ...
XING Longtao, FENG Zhizhuang, QIAN Feng, LUO Jun, ZHANG Xuedong   +4 more
doaj   +2 more sources

Actuator fault detection and isolation on a quadrotor unmanned aerial vehicle modeled as a linear parameter-varying system

Measurement + Control, 2019
This paper presents the design of a fault detection and diagnosis system for a quadrotor unmanned aerial vehicle under partial or total actuator fault.
Julio Alberto Guzmán-Rabasa, Francisco Ronay López-Estrada, Brian Manuel González-Contreras, Guillermo Valencia-Palomo, Mohammed Chadli, Madain Pérez-Patricio   +5 more
doaj   +2 more sources

Distributed Robust Formation Tracking Control for Quadrotor UAVs with Unknown Parameters and Uncertain Disturbances

Aerospace, 2023
In this paper, the distributed formation tracking control problem of quadrotor unmanned aerial vehicles is considered. Adaptive backstepping inherently accommodates model uncertainties and external disturbances, making it a robust choice for the dynamic ...
Linxing Xu, Yang Li
doaj   +1 more source

Bioinspired backstepping sliding mode control and adaptive sliding innovation filter of quadrotor unmanned aerial vehicles

Biomimetic Intelligence and Robotics, 2023
Quadrotor unmanned aerial vehicles have become the most commonly used flying robots with wide applications in recent years. This paper presents a bioinspired control strategy by integrating the backstepping sliding mode control technique and a ...
Zhe Xu, Tao Yan, Simon X. Yang, S. Andrew Gadsden   +3 more
doaj   +1 more source

A hybrid thrusting system for increasing the endurance time of multirotor unmanned aerial vehicles

International Journal of Advanced Robotic Systems, 2023
One of the most significant disadvantages of electric multirotor unmanned aerial vehicles is their short flight time compared to fuel-powered unmanned aerial vehicles. This is mainly due to the low energy density of electric batteries. Fuel has much more
Jawad Bdour, Belal H Sababha
doaj   +1 more source

Visual localization with a monocular camera for unmanned aerial vehicle based on landmark detection and tracking using YOLOv5 and DeepSORT

International Journal of Advanced Robotic Systems, 2023
Absolute visual localization is of significant importance for unmanned aerial vehicles when the satellite-based localization system is not available. With the rapid evolution in the field of deep learning, the real-time visual detection and tracking of ...
Liqun Ma, Dongyuan Meng, Shuaihe Zhao, Binbin An   +3 more
doaj   +1 more source

Path Planning Approach for a Quadrotor Unmanned Aerial Vehicle

, 2021
A path planning method for an unmanned aerial system type quadrotor is proposed in this work. It is based on Dubins curves. Therefore, different points (initial and ending) are set for generation of several paths. Additionally, to validate the proposed model a computational resource is applied.
César A. Cárdenas R., Vanesa Landero, Ramón Enrique Ramayo González, Paola Ariza Colpas, Emiro de la Hoz Franco, Carlos Andrés Collazos Morales   +5 more
openaire   +3 more sources

Iterative learning-based formation control for multiple quadrotor unmanned aerial vehicles

International Journal of Advanced Robotic Systems, 2020
A double-layer formation control is proposed to solve the repeated tasks for multiple quadrotor unmanned aerial vehicle systems. The first layer aims at achieving a formation target in which the iterative learning control is designed based on relative ...
Zhihui Zhao, Jing Wang, Yangquan Chen, Shuang Ju   +3 more
doaj   +1 more source