A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Filters
Robust Backstepping-Based Trajectory Tracking Control for Quadrotors with Time Delays
2019
IET Control Theory & Applications
Preserved Fulltext
In this brief, the robust trajectory tracking control problem is addressed for uncertain quadrotor systems with time delays. ...
The quadrotor dynamical model is an under-actuated system subject to non-linearity, unmodelled uncertainties, parametric perturbations, external disturbances, and state and input time delays. ...
Acknowledgments This work was supported by the National Natural Science Foundation of China under grants 61873012, 61503012, and 61633007, and the Office of Naval Research under grant N00014-17-1-2239. ...
doi:10.1049/iet-cta.2018.6043
fatcat:o7c3btwvc5bmrlbzq4xulxca7q
Neural Network Control Design for an Unmanned Aerial Vehicle with a Suspended Payload
2019
Electronics
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
In this work, the attitude and position control challenges for a drone with a package connected by a wire is analysed. ...
A robust neural network-based backstepping sliding mode control method is designed, which is capable of monitoring the drone's flight path and desired attitude with a suspended cable attached. ...
In particular, the robust control of the quadrotor with uncertainties and delays is a critical problem both for the platform and humans on the ground. ...
doi:10.3390/electronics8090931
fatcat:l7pbedbgevdnbp3z2j4amnpgry
System Identification and H_∞-based Control of Quadrotor Attitude
[article]
2018
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Other Versions
Results verify that the designed controller does retain robust stability, and provide a better tracking performance in comparison with a well-tuned PID and a μ synthesis controller. ...
The attitude control of a quadrotor is a fundamental problem, which has a pivotal role in a quadrotor stabilization and control. ...
In [29] , a robust compensating technique is used to control quadrotors with time-varying uncertainties and delays. In [30] a nonlinear H ∞ controller is designed to achieve the robustness. ...
arXiv:1812.10931v1
fatcat:bo2yfmh2jbbipdr7ecnhgnijgq
Quadrotor Trajectory Tracking Based on Quasi-LPV System and Internal Model Control
2015
Mathematical Problems in Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
The simulation results indicate that the control method proposed in this paper has stronger robustness to parameters uncertainty and disturbance rejection performance. ...
Internal model control (IMC) design method based on quasi-LPV (Linear Parameter Varying) system is proposed. ...
Therefore, the attitude angle stability of quadrotor can be realized by individually designed controllers for three attitude angles. ...
doi:10.1155/2015/857291
fatcat:eqwspcy7qbdspg3tmbzxi7jei4
Design of mixed sensitivity H∞ control for four-rotor hover vehicle
2017
International Journal of Automation and Control
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
In this paper, design of a robust attitude controller for four-rotor hover vehicle that is a kind of MUAV, based on H ∞ mixed-sensitivity synthesis is presented. ...
H ∞ mixed-sensitivity controller is designed due to the uncertain nature of the system. The efficacy of the proposed controller is proved by simulations and experiment. ...
angle close to the reference trajectory in presence of the model uncertainties and to ensure robust stability of the closed loop system. ...
doi:10.1504/ijaac.2017.080821
fatcat:wsodb4flk5awjhnclutuv6r7u4
A Survey of Control Methods for Quadrotor UAV
2022
International Journal of Robotics and Control Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
Therefore, they require robust and effective control to stabilize them and enhance their performance. ...
The control algorithms are mainly employed for the attitude and position control of the UAVs. In the past decades, quadrotors have become the most popular UAVs, their adaptability and small size. ...
In [26] , the authors presented a study of the FL to achieve attitude control and stabilize the quadrotor system. ...
doi:10.31763/ijrcs.v2i4.743
fatcat:mhjgbvk2rff3vo2ixruuhthsoa
Advanced Observer-Based Control for Benchmark Control Problems: From Mathematical Modeling to Control Design
2018
Mathematical Problems in Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Design for Linear Time-Delay Systems with Multiple Delays". ...
This observer is used to design a robust control algorithm for a quadrotor UAV attitude dynamics to monitor a watershed in real time. Lyapunov stability theory is used during the design. ...
We hope this special issue offers a wide-ranging and timely view of the area of design of observers and observer-based controllers, which will generate stimulation for further academic research and industrial ...
doi:10.1155/2018/2161456
fatcat:ylgnazn7uzh4nf27pnvu2oiacy
A Robust Attitude Controller and its Application to Quadrotor Helicopters
2011
IFAC Proceedings Volumes
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
Model uncertainties in the system are estimated on-line based on a time-delay control approach. ...
The robustness of the flight controller is enhanced using an anti-windup integrator technique and semi-global asymptotical stability is proven. ...
INTRODUCTION Flight control design for quadrotors is currently very popular in the control and robotics community. ...
doi:10.3182/20110828-6-it-1002.02377
fatcat:tqvsgcsolzhwbpszomvinbf4lm
Design of an Intelligent Controller for Station Keeping, Attitude Control, and Path Tracking of a Quadrotor Using Recursive Neural Networks
2019
International Journal of Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
T he aim of this study is to design and implement an intelligent controller for station keeping, attitude control, and path tracking of a quadrotor. ...
The main step in the manufacturing of a fully autonomous unmanned aerial vehicle is to design a controller which stabilizes the aerial vehicle in the presence of uncertainties and disturbances, then navigate ...
Other methods like pole placement for attitude control [9] and velocity control [10] have also been used. The third kind of controllers designed for quadrotors is robust controllers. ...
doi:10.5829/ije.2019.32.05b.17
fatcat:bapcfqfowzachgeul7u3tiabsi
New Developments in Sliding Mode Control and Its Applications
2014
Mathematical Problems in Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
An et al. is concerned with the sliding mode observer design framework and a second order geometric sliding mode attitude observer is designed for angular velocity estimation of quadrotor attitude. ...
"Sliding mode control for multiagent system with time-delay and uncertainties: an LMI approach" by P. ...
Acknowledgments We would like to express our sincere appreciation to the authors for their remarkable contributions in assisting us. ...
doi:10.1155/2014/481419
fatcat:6imzei5avzd5vkun5sqll7hry4
Distributed Formation Control for Multiple Quadrotor Based on Multi-Agent Theory and Disturbance Observer
2019
Mathematical Problems in Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
This paper presents the disturbance observers-based distributed formation control for multiple quadrotor aircrafts with external disturbances and uncertain parameters using multi-agent theory and finite-time ...
By skillfully using homogeneous system theory, Lyapunov theory, and multi-agent theory, the distributed formation control algorithms are developed. ...
The high dimension and nonlinear coupling of multiple quadrotor aircraft systems make the controller design and stability analysis of the closed-loop system more difficult. ...
doi:10.1155/2019/7234969
fatcat:pxiiomap3zcrjijnazgt6g4oni
Control Algorithms for UAVs: A Comprehensive Survey
2020
EAI Endorsed Transactions on Industrial Networks and Intelligent Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Many control and navigation algorithms are experimented and deployed for UAVs, especially quadrotors. ...
At last, the challenges and future directions of the quadrotor flight controller are suggested. ...
[31] design and implement H ∞ linear control system for quadrotor helicopter. ...
doi:10.4108/eai.18-5-2020.164586
fatcat:ob4r7pit7rfmfm7fd4ivjeq7ee
Adaptive Control With Unknown System Dynamics Estimator for Quadrotor Attitude Tracking
2022
IEEE Access
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
This paper presents an adaptive control scheme via combining with an unknown system dynamics estimator (USDE) for attitude control of quadrotors subject to both parametric uncertainties and external disturbances ...
The presented controller is designed by effectively merging an adaptive control with an USDE via backstepping, where the extraneous uncertainties are addressed by USDE, and the adaptive law driven by tracking ...
In [12] , the problem of adaptive outputfeedback neural tracking control for a class of uncertain switched multiple-input multiple-output nonstrict-feedback nonlinear systems with time delays is investigated ...
doi:10.1109/access.2022.3176644
fatcat:yct4qb2lozephpkl7orydw4t4e
A Neural Network Based Landing Method for an Unmanned Aerial Vehicle with Soft Landing Gears
2019
Applied Sciences
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
This paper presents the design, implementation, and testing of a soft landing gear together with a neural network-based control method for replicating avian landing behavior on non-flat surfaces. ...
With full consideration of unmanned aerial vehicles and landing gear requirements, a quadrotor helicopter, comprised of one flying unit and one landing assistance unit, is employed. ...
Numerous robust control schemes have been developed to address the control problems in quadrotor helicopters associated with uncertainties and delays. ...
doi:10.3390/app9152976
fatcat:yu4pskdo2fbjtkbfndlt2lgb6a
Distributed backstepping based control ofmultiple UAV formation flight subject to timedelays
2020
IET Control Theory & Applications
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
A backstepping-based outer position controller is then designed that interfaces seamlessly with the inner attitude controller of the cascaded control system. ...
Using the directed graph topology and a distributed backstepping structure, it is shown that the stability criterion is delay-independent. ...
Kartal thanks Turkish Aerospace for the scholarship granted. ...
doi:10.1049/iet-cta.2019.1151
fatcat:kgzwoywbu5eanfbjdrafgvvd5m
« Previous
Showing results 1 — 15 out of 449 results