Results 11 to 20 of about 31,019,635 (353)

A robust state estimator against constant measurement delay based on the sensitivity penalisation of model‐parameter errors for systems with no exogenous inputs

open access: yesIET Radar, Sonar & Navigation, 2021
In this study, a class of linear system, which is with no exogenous input and suffered from constant measurement delay and uncertain model‐parameter errors, is under consideration.
Qiunong He   +3 more
doaj   +1 more source

An Aggregation-Based Algebraic Multigrid Method with Deflation Techniques and Modified Generic Factored Approximate Sparse Inverses

open access: yesMathematics, 2023
In this paper, we examine deflation-based algebraic multigrid methods for solving large systems of linear equations. Aggregation of the unknown terms is applied for coarsening, while deflation techniques are proposed for improving the rate of convergence.
Anastasia A. Natsiou   +3 more
doaj   +1 more source

An online intelligent robust adaptive LSQR estimation method for LTI state space model

open access: yesIET Control Theory & Applications, 2023
Regarding the low accuracy and instability of common online methods for estimating dynamic models in the time domain, in the presence of uncertainty in system dynamics, sensor noise and environmental disturbances, this area is still open for further ...
Shahram Hosseini   +2 more
doaj   +1 more source

Many-Body Systems and Quantum Chaos: The Multiparticle Quantum Arnol’d Cat

open access: yesCondensed Matter, 2019
A multi-particle extension of the Arnol’d cat Hamiltonian system is presented, which can serve as a fully dynamical model of decoherence. The behavior of the von Neumann entropy of the reduced density matrix is studied, in time and as a function of the ...
Giorgio Mantica
doaj   +1 more source

A new method for solving ill-conditioned linear systems [PDF]

open access: yesOpuscula Mathematica, 2013
An accurate numerical method is established for matrix inversion. It is shown theoretically that the scheme possesses the high order of convergence of seven. Subsequently, the method is taken into account for solving linear systems of equations.
Fazlollah Soleymani
doaj   +1 more source

On Linear Information Systems [PDF]

open access: yes, 2009
Scott's information systems provide a categorically equivalent, intensional description of Scott domains and continuous functions. Following a well established pattern in denotational semantics, we define a linear version of information systems ...
A. Bucciarelli   +37 more
core   +4 more sources

Stability of quaternionic linear systems [PDF]

open access: yes, 2006
The main goal of this paper is to characterize stability and bounded-input-bounded-output (BIBO)-stability of quaternionic dynamical systems. After defining the quaternion skew-field, algebraic properties of quaternionic polynomials such as divisibility ...
Pereira, Ricardo, Vettori, Paolo
core   +2 more sources

Particle scale force sensor based on intensity gradient method in granular photoelastic experiments

open access: yesNew Journal of Physics, 2019
The intensity gradient method ( G ^2 method), namely computing the light intensity gradient-squared, is a widely used non-invasive experimental method to extract stress information from quasi-two-dimensional photoelastic granular materials.
Yiqiu Zhao   +4 more
doaj   +1 more source

Equilibrium controllability analysis and input design of linear systems

open access: yesSICE Journal of Control, Measurement, and System Integration, 2023
In setpoint control, an equilibrium of the system to be controlled is typically employed as the setpoint. Thus, it is important to know the “possible equilibria” of the system, i.e.
Takumi Iwata   +4 more
doaj   +1 more source

Linear Dynamical Systems [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
We consider a probability measure m m on a Hilbert space X X and a bounded linear transformation on X X that preserves the measure. We characterize the linear dynamical systems ( X , m , T ) (X,m,T) for the cases where either
openaire   +1 more source

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