Results 31 to 40 of about 174,051 (287)

Adaptive output feedback finite time control for a class of second order nonlinear systems [PDF]

open access: yes, 2016
This paper develops a finite time output feedback based control scheme for a class of nonlinear second order systems. The system representation includes both model uncertainty and uncertain parameters. A finite time parameter estimator is developed. This
Spurgeon, Sarah K.   +2 more
core   +2 more sources

Finite-time interval observer design for discrete-time switched systems: A linear programming approach

open access: yesMeasurement + Control, 2020
This paper deals with the finite-time interval observer design method for discrete-time switched systems subjected to disturbances. The disturbances of the system are unknown but bounded.
Fei Sun, Jun Huang, Xiang Ma, Xiao Wen
doaj   +1 more source

Finite Time Disturbance Observer Based on Air Conditioning System Control Scheme

open access: yesEnergies, 2023
A novel robust finite time disturbance observer (RFTDO) based on an independent output-finite time composite control (FTCC) scheme is proposed for an air conditioning-system temperature and humidity regulation. The variable air volume (VAV) of the system
Kamal Rsetam   +3 more
doaj   +1 more source

Finite-time Sliding Mode Control for Continuous Stirred Tank Reactor Based on Disturbance Observer [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
This paper aims to investigate the robust control problem of Continuously Stirred Tank Reactors (CSTR). A CSTR is one of the most essential pieces of equipment in chemical processes, whose effects of highly nonlinear dynamic and external disturbances ...
Mehran Derakhshannia   +1 more
doaj   +1 more source

Finite-time ship formation control based on extended state observer

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveIn order to solve the problems of most current ship formation control algorithms such as their long control cycle and poor timeliness, this paper proposes a finite-time control strategy based on an extended state observer (ESO).MethodsFirst, a ...
Jun NING   +5 more
doaj   +1 more source

Corrections to “A Global High-Gain Finite-Time Observer” [PDF]

open access: yesIEEE Transactions on Automatic Control, 2017
This note fixes the proof of Theorem 2 in the above paper.
Menard, Tomas   +2 more
openaire   +3 more sources

Design of a distributed finite-time observer using observability decompositions [PDF]

open access: yes2019 18th European Control Conference (ECC), 2019
In this paper, a distributed observer is presented to estimate the state of a linear time-invariant plant in finite-time in each observer node. The design is based on a decomposition into locally observable and unobservable substates and on properties of homogeneous systems.
Silm, Haik   +4 more
openaire   +2 more sources

Observer-Based Finite-Time Adaptive Sliding Mode Control for Itô Stochastic Jump Systems With Actuator Degradation

open access: yesIEEE Access, 2020
This paper investigates the problem of finite-time adaptive sliding mode control for Itô stochastic systems with Markovian switching, where the transition rate matrix of the jump systems is partially available, and unknown actuator degradation ...
Tengyu Ma, Longsuo Li, Huayi Li
doaj   +1 more source

Diamonds's Temperature: Unruh effect for bounded trajectories and thermal time hypothesis

open access: yes, 2003
We study the Unruh effect for an observer with a finite lifetime, using the thermal time hypothesis. The thermal time hypothesis maintains that: (i) time is the physical quantity determined by the flow defined by a state over an observable algebra, and ...
Bisognano J J   +24 more
core   +2 more sources

Cosmology: a bird's eye view [PDF]

open access: yes, 2006
In this essay we discuss the difference in views of the Universe as seen by two different observers. While one of the observers follows a geodesic congruence defined by the geometry of the cosmological model, the other observer follows the fluid flow ...
ALAN A. COLEY   +3 more
core   +2 more sources

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