Results 261 to 270 of about 506,228 (277)

Fault detection based on extended state observer and interval observer for UAVs

Aircraft Engineering and Aerospace Technology, 2022
Purpose The purpose of this paper is to present an actuator fault detection method for unmanned aerial vehicles (UAVs) based on interval observer and extended state observer. Design/methodology/approach The proposed algorithm has very little model dependency.
Lijia Cao, Xu Yang, Guoqing Wang, Yang Liu, Yu Hu   +4 more
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Missile Guidance Law Based on Extended State Observer

IEEE Transactions on Industrial Electronics, 2013
The problem of missile interception is investigated in this paper. Sliding-mode controllers with finite-time convergence are proposed for the design of guidance laws. In particular, the control design consists of the estimation of the target acceleration by the extended state observer (ESO), and thus, it achieves the decrease of undesired chattering ...
Zheng Zhu, Dong Xu, Jingmeng Liu, Yuanqing Xia   +3 more
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Extended State Observer for Nonlinear Systems with Uncertainty

IFAC Proceedings Volumes, 2011
Abstract The extended state observer first proposed by Jingqing Han in [J. Q. Han, The extended state observer for a class of uncertain systems, Control and Decision, 10(1)(1995), 85-88] is the main interim loop of active disturbance rejection control that is taking off as a technology after numerous successful applications in engineering ...
Bao-Zhu Guo, Zhi-Liang Zhao
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ADRC Continuous and Smooth Extended State Observer Design

Proceedings of the 2019 The 2nd International Conference on Robotics, Control and Automation Engineering, 2019
The extended state observer in ADRC theory is presented in this paper. The ESO expressed as the fal function is continuous but not smooth, Aiming at the disadvantage, Construct the qin function that is continuous and smooth. Combination smooth characteristics of derivative continuous at the value of linear length section and the zero, Construct the ...
Juan Liu, ChangMao Qin, Jinhe Mo
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Adaptive quaternion tracking with nonlinear extended state observer

Acta Astronautica, 2017
Abstract This paper addresses the problem of attitude tracking for spacecraft in the presence of uncertainties in moments of inertia and environmental disturbances. An adaptive quaternion tracking control is combined with a nonlinear extended state observer and the disturbances compensated for in each sampling period.
Yu-liang Bai, Xiao-gang Wang, Jiang-tao Xu, Nai-gang Cui   +3 more
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Enhanced extended state observer based control for missile acceleration autopilot

ISA Transactions, 2020
In disturbance rejection based control methodologies, the term disturbance generally refers to internal uncertainties, external disturbances, and/or a combination of both. This paper argues that this concept can be further extended to the difference between what a controlled system is actually and what it should be, and an enhanced extended state ...
Jiayi, Tian, Shifeng, Zhang, Huabo, Yang
openaire   +2 more sources

Extended State Observer Based Ascent Trajectory Tracking Method

Volume 9: 13th ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications, 2017
The ascent trajectory tracking problem of a launch vehicle is investigated in this paper. To improve the conventional trajectory linearization method which usually omits the linearization errors, the extended state observer (ESO) is employed in this paper to timely estimate the total disturbance which consists of the external disturbances and the ...
Wenming Nie, Huifeng Li, Ran Zhang, Bo Liu   +3 more
openaire   +1 more source

Optimal fast tracking observer bandwidth of the linear extended state observer

International Journal of Control, 2007
In current industrial control applications, the proportional + integral + derivative (PID) control is still used as the leading tool, but constructing controller requires precise mathematical model of plant, and tuning the parameters of controllers is not simple to implement.
D. Yoo, S. S.-T. Yau, Z. Gao
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Composite disturbance rejection control based on generalized extended state observer

ISA Transactions, 2016
Traditional extended state observer (ESO) design method does not focus on analysis of system reconstruction strategy. The prior information of the controlled system cannot be used for ESO implementation to improve the control accuracy. In this paper, composite disturbance rejection control strategy is proposed based on generalized ESO.
Yanjun, Zhang, Jun, Zhang, Lu, Wang, Jianbo, Su   +3 more
openaire   +2 more sources

Neural Network Extended State-Observer

2022 China Automation Congress (CAC), 2022
Yunlong Zhu, Zhe Dong, Xiaojin Huang
openaire   +1 more source