Results 11 to 20 of about 174,051 (287)

Finite time estimation through a continuous‐discrete observer [PDF]

open access: yesInternational Journal of Robust and Nonlinear Control, 2018
SummaryWe study two broad classes of nonlinear time‐varying continuous‐time systems with outputs. For the first class, we build an observer in the case where a state dependent disturbance affects the linear approximation. When the disturbances are the zero functions, our observer provides exact values of the state at all times larger than a suitable ...
Frédéric Mazenc   +2 more
openaire   +3 more sources

Finite-Time Control Algorithm Based on Modal State Observer for Flexible Satellite Attitude Tracking

open access: yesIEEE Access, 2020
An attitude controller with finite time convergence rate for satellite attitude tracking issue considering the flexible dynamic based on a finite time modal state observer is proposed in this article.
Sijia Li, Qiang Wu
doaj   +1 more source

A Finite-Time Fault-Tolerant Control Using Non-Singular Fast Terminal Sliding Mode Control and Third-Order Sliding Mode Observer for Robotic Manipulators

open access: yesIEEE Access, 2021
In this paper, a fault-tolerant control (FTC) method for robotic manipulators is proposed to deal with the lumped uncertainties and faults in case of lacking tachometer sensors in the system.
Van-Cuong Nguyen   +2 more
doaj   +1 more source

Importance of an Astrophysical Perspective for Textbook Relativity [PDF]

open access: yes, 1997
The importance of a teaching a clear definition of the ``observer'' in special relativity is highlighted using a simple astrophysical example from the exciting current research area of ``Gamma-Ray Burst'' astrophysics.
Eric G Blackman   +6 more
core   +2 more sources

Finite-Time Disturbance Observer of Nonlinear Systems

open access: yesSymmetry, 2022
In practical applications, for highly nonlinear systems, how to implement control tasks for dynamic systems with uncertain parameters is still a hot research issue. Aiming at the internal parameter fluctuations and external unknown disturbances in nonlinear system, this paper proposes an adaptive dynamic terminal sliding mode control (ADTSMC) based on ...
Yunmei Fang, Yun Chen, Juntao Fei
openaire   +1 more source

Finite-time observer design of a class of nonlinear systems [PDF]

open access: yesArchives of Control Sciences
We consider the problem of global finite-time stability for a class of nonlinear systems. The novelty in this paper is to consider a nonlinear finite time observer design, which introduces a finite-time observer for nonlinear systems that can be put into
Abdessalem Bouzidi, Thouraya Kharrat
doaj   +1 more source

Algebraic observer design for PEM fuel cell system [PDF]

open access: yes, 2016
© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Baroud, Zakaria   +3 more
core   +1 more source

Information gap for classical and quantum communication in a Schwarzschild spacetime [PDF]

open access: yes, 2012
Communication between a free-falling observer and an observer hovering above the Schwarzschild horizon of a black hole suffers from Unruh-Hawking noise, which degrades communication channels. Ignoring time dilation, which affects all channels equally, we
Carsten van de Bruck   +6 more
core   +2 more sources

Finite-time tracking control for uncertain robotic manipulators using backstepping method and novel extended state observer

open access: yesInternational Journal of Advanced Robotic Systems, 2019
This article considers finite-time trajectory tracking control problem for robotic manipulators with parameter uncertainties and external disturbances.
Chao Chen   +4 more
doaj   +1 more source

Robust Finite-Time Output Feedback Control for Systems With Unpredictable Time-Varying Disturbances

open access: yesIEEE Access, 2020
This work presents a robust finite-time output feedback control method for a number of nonlinear systems that suffer unpredictable time-varying disturbances. The developed method takes advantage of control techniques based on a finite-time state observer
Huiming Wang   +3 more
doaj   +1 more source

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