Results 1 to 10 of about 1,125 (187)

Model and Data-Driven Combination: A Fault Diagnosis and Localization Method for Unknown Fault Size of Quadrotor UAV Actuator Based on Extended State Observer and Deep Forest [PDF]

open access: yesSensors, 2022
The rotor is an essential actuator of quadrotor UAV, and is prone to failure due to high speed rotation and environmental disturbances. It is difficult to diagnose rotor faults and identify the fault localization simultaneously. In this paper, we propose
Jia Song   +3 more
doaj   +2 more sources

Bioinspired Adaptive Leg-Claw Enables Robust Perching and Grasping for UAVs. [PDF]

open access: yesAdv Sci (Weinh)
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Cheng T   +6 more
europepmc   +2 more sources

Quadrotor Controller Design Techniques and Applications Review [PDF]

open access: yesINCAS Bulletin, 2021
Rotor-craft style UAV, such as the quadrotor, has become increasingly popular with researchers due to its advantages over fixed-wing UAV. The quadrotor is highly maneuverable, can perform vertical take-off and landing (VTOL), and can hover flight ...
Mohamad Norherman SHAUQEE   +2 more
doaj   +1 more source

Research on Dynamic Path Exploration and Planning Method of Quadrotor Unmanned Aerial Vehicle in Complex Environment [PDF]

open access: yesMATEC Web of Conferences, 2023
As a research hotspot in the field of mobile robots in recent years, UAV(Unmanned Aerial Vehicle) has been improving its autonomous performance. Compared with traditional UAV, UAV has many advantages, such as vertical lifting, strong maneuverability and ...
Huang Hanting
doaj   +1 more source

Design of multi-sensor quadrotor attitude control system based on STM32

open access: yesDianzi Jishu Yingyong, 2021
Aiming at the problem that the attitude sensor of the quadrotor was susceptible to interference, resulting in large attitude output errors, a multi-sensor quadrotor attitude control system based on STM32 was designed.
Ren Jianqiu   +2 more
doaj   +1 more source

Attitude Control of the Quadrotor UAV with Mismatched Disturbances Based on the Fractional-Order Sliding Mode and Backstepping Control Subject to Actuator Faults

open access: yesFractal and Fractional, 2023
Considering mismatched disturbances, aerodynamic interference, chattering, and actuator failure in the attitude control of the quadrotor unmanned aerial vehicle (UAV), this paper establishes a new quadrotor UAV model with mismatched disturbances, based ...
Hui Sun   +3 more
doaj   +1 more source

Robust Decentralized H∞ Attack-Tolerant Observer-Based Team Formation Network Control of Large-Scale Quadrotor UAVs: HJIE-Reinforcement Learning-Based Deep Neural Network Method

open access: yesIEEE Access, 2023
In this paper, a robust decentralized $H_{\infty} $ attack-tolerant observer-based team formation tracking control scheme is proposed for large-scale quadrotor unmanned aerial vehicle (UAV) systems under external disturbance, measurement noise ...
Bor-Sen Chen, Po-Chun Chao
doaj   +1 more source

Synopsis of Soft Computing Techniques used in Quadrotor UAV Modelling and Control [PDF]

open access: yesInterdisciplinary Description of Complex Systems, 2015
The aim of this article is to give an introduction to quadrotor systems with an overview of soft computing techniques used in quadrotor unmanned aerial vehicle (UAV) control, modelling, object following and collision avoidance.
Attila Nemes
doaj   +1 more source

Study on Active Fault Tolerant Flight Control Systems for Quadrotor UAV with Actuator Failures [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The rotor blades' fatigue fracture of Quadrotor UAV easily causes the instability or even crash of the UAV due to high-load and long-endurance flight missions. Under this circumstances, an active fault-tolerant flight controller of Quadrotor UAV based on

doaj   +1 more source

Equivariant Reinforcement Learning for Quadrotor UAV

open access: yes2023 American Control Conference (ACC), 2023
This paper presents an equivariant reinforcement learning framework for quadrotor unmanned aerial vehicles. Successful training of reinforcement learning often requires numerous interactions with the environments, which hinders its applicability especially when the available computational resources are limited, or when there is no reliable simulation ...
Beomyeol Yu, Taeyoung Lee
openaire   +2 more sources

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