Results 1 to 10 of about 90,258 (216)

Multibody-Based Input and State Observers Using Adaptive Extended Kalman Filter [PDF]

open access: yesSensors, 2021
The aim of this work is to explore the suitability of adaptive methods for state estimators based on multibody dynamics, which present severe non-linearities.
Antonio J. Rodríguez   +3 more
doaj   +2 more sources

On-line process identification using the Modulating Functions Method and non-asymptotic state estimation [PDF]

open access: yesArchives of Control Sciences, 2022
The paper presents an iterative identification method dedicated for industrial processes. The method consists of two steps. In the first step, a MISO system is identified with the Modulating Functions Method to obtain sub-models with a common denominator.
Witold Byrski, Michał Drapała
doaj   +1 more source

Linear Quantum State Observers

open access: yesIEEE Transactions on Quantum Engineering, 2022
This article considers the use of linear state observers to infer the unknown state (density matrix) of a closed quantum system using generalized quantum measurement—positive operator-valued measures (POVMs). An efficient test for observability is
Maison Clouatre   +3 more
doaj   +1 more source

Robust Control Based on Observed States Designed by Means of Linear Matrix Inequalities for Grid-Connected Converters

open access: yesEnergies, 2023
This paper provides a procedure to design robust controllers based on observed states applied to three-phase inverters with LCL filters connected to a grid with uncertain and possibly time-varying impedances, which can arise in renewable energy systems ...
Gustavo G. Koch   +3 more
doaj   +1 more source

Comparative Analysis of a Family of Sliding Mode Observers under Real-Time Conditions for the Monitoring in the Bioethanol Production

open access: yesFermentation, 2022
Online monitoring of fermentation processes is a necessary task to determine concentrations of key biochemical compounds, diagnose faults in process operations, and implement feedback controllers. However, obtaining the signals of all-important variables
Eduardo Alvarado-Santos   +5 more
doaj   +1 more source

Distributed Observers for State Omniscience with Stochastic Communication Noises

open access: yesMathematics, 2023
The focus of this paper is on solving the state estimation problem for general continuous-time linear systems through the use of distributed networked observers.
Kairui Chen   +3 more
doaj   +1 more source

Developing Induction Motor State Observers with Increased Robustness

open access: yesEnergies, 2020
This paper presents the results of recently conducted research on Luenberger observers with non-proportional feedbacks. The observers are applied for the reconstruction of magnetic fluxes of an induction motor.
Tadeusz Białoń   +2 more
doaj   +1 more source

Functional Observers for Descriptor Systems With Unknown Inputs

open access: yesIEEE Access, 2023
This paper addresses the problem of estimating a functional vector for a class of linear time-invariant descriptor systems with unknown inputs. The unknown inputs are considered in both the system dynamics and measurement equations. The proposed observer
Pabitra Kumar Tunga   +2 more
doaj   +1 more source

Fault detection using state observers with unknown input, identified by orthogonal functions

open access: yesVetor, 2013
In this work a methodology of fault analysis in mechanical systems was developed using Kalman Filter state observes, in which, the input to the observers are identified by Fourier, Legendre and Chebyshev orthogonal functions.
Gilberto Pechoto Melo   +2 more
doaj   +4 more sources

A physical protocol for observers near the boundary to obtain bulk information in quantum gravity

open access: yesSciPost Physics, 2021
We consider a set of observers who live near the boundary of global AdS, and are allowed to act only with simple low-energy unitaries and make measurements in a small interval of time. The observers are not allowed to leave the near-boundary region.
Chandramouli Chowdhury, Olga Papadoulaki, and Suvrat Raju
doaj   +1 more source

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