Results 1 to 10 of about 978 (94)

Systematic Fault Tolerant Control Based on Adaptive Thau Observer Estimation for Quadrotor Uavs [PDF]

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
Abstract A systematic fault tolerant control (FTC) scheme based on fault estimation for a quadrotor actuator, which integrates normal control, active and passive FTC and fault parking is proposed in this paper. Firstly, an adaptive Thau observer (ATO) is presented to estimate the quadrotor rotor fault magnitudes, and then faults with ...
Cen, Zhaohui   +2 more
openaire   +2 more sources

Robust Reduced Order Thau Observer With the Adaptive Fault Estimator for the Unmanned Air Vehicles [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2023
Developing fault detection and diagnoses algorithms for the unmanned air vehicles such as the quadrotors is challenging since they are intrinsically non-linear, time-varying, unstable, and uncertain.
Onder Tutsoy   +3 more
openaire   +3 more sources

Sliding Mode Thau Observer for Actuator Fault Diagnosis of Quadcopter UAVs

open access: yesApplied Sciences, 2018
Fault diagnosis (FD) is one of the main roles of fault-tolerant control (FTC) systems. An FD should not only identify the presence of a fault, but also quantify its magnitude and location.
Ngoc Phi Nguyen, Sung Kyung Hong
doaj   +1 more source

Fault Diagnosis and Fault-Tolerant Control Scheme for Quadcopter UAVs with a Total Loss of Actuator

open access: yesEnergies, 2019
Fault-tolerant control has drawn attention in recent years owning to its reliability and safe flight during missions. In this article, an active fault-tolerant control method is proposed to control a quadcopter in the presence of actuator faults and ...
Ngoc Phi Nguyen, Sung Kyung Hong
doaj   +1 more source

A survey on fractional order control techniques for unmanned aerial and ground vehicles [PDF]

open access: yes, 2019
In recent years, numerous applications of science and engineering for modeling and control of unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs) systems based on fractional calculus have been realized.
Cajo Diaz, Ricardo Alfredo   +5 more
core   +2 more sources

Online fault detection and isolation of nonlinear systems [PDF]

open access: yes, 1999
This paper describes an online fault detection scheme for a class of nonlinear dynamic systems with modelling uncertainty and inaccessible states. Only the inputs and outputs of the system can be measured.
Chan, CW, Chan, WC, Cheung, KC, Wang, Y
core   +1 more source

A Robust Nonlinear Observer-based Approach for Distributed Fault Detection of Input-Output Interconnected Systems [PDF]

open access: yes, 2015
This paper develops a nonlinear observer-based approach for distributed fault detection of a class of interconnected input–output nonlinear systems, which is robust to modeling uncertainty and measurement noise.
Keliris, K.   +2 more
core   +1 more source

The Use of Online Panel Data in Management Research: A Review and Recommendations [PDF]

open access: yes, 2018
Management scholars have long depended on convenience samples to conduct research involving human participants. However, the past decade has seen an emergence of a new convenience sample: online panels and online panel participants.
Cho, Thomas S.   +3 more
core   +4 more sources

The control of switching dc-dc converters : a general LQR problem [PDF]

open access: yes, 2014
Author name used in this publication: C. K.
Leung, FHF, Li, CK, Tam, PKS
core   +1 more source

Locally convergent nonlinear observers [PDF]

open access: yes, 2003
The article of record as published may be located at http://dx.doi.org/10.1137/S0363012900368612We introduce a new method for the design of observers for nonlinear systems using backstepping.
Kang, Wei, Krener, Arthur J.
core   +1 more source

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