Results 41 to 50 of about 26,813 (231)

Hankel matrix-based denoising for statistical damage diagnosis

open access: yes, 2022
ISBN:978-84-09-44336 ...
Gres, Szymon   +3 more
openaire   +4 more sources

Simultaneously Low Rank and Group Sparse Decomposition for Rolling Bearing Fault Diagnosis

open access: yesSensors, 2020
Singular value decomposition (SVD) methods have aroused wide concern to extract the periodic impulses for bearing fault diagnosis. The state-of-the-art SVD methods mainly focus on the low rank property of the Hankel matrix for the fault feature, which ...
Kai Zheng   +5 more
doaj   +1 more source

Orthogonal diagonalization for complex skew-persymmetric anti-tridiagonal Hankel matrices

open access: yesSpecial Matrices, 2016
In this paper, we obtain an eigenvalue decomposition for any complex skew-persymmetric anti-tridiagonal Hankel matrix where the eigenvector matrix is orthogonal.
Gutiérrez-Gutiérrez Jesús   +1 more
doaj   +1 more source

Kernel Function Definition Completion for Time–Domain State–Space Representations of Radiation Forces: Application to the Hankel Singular Value Decomposition

open access: yesJournal of Marine Science and Engineering, 2021
This paper focuses on the formulation of state–space representations of radiation forces for marine structures using Hankel Singular Value Decomposition (HSVD), a method used to obtain a state–space realization from a Hankel matrix, with the classical ...
Romain Lecuyer-Le Bris   +3 more
doaj   +1 more source

T-S Fuzzy Model-Based Approximation and Filter Design for Stochastic Time-Delay Systems with Hankel Norm Criterion

open access: yesAbstract and Applied Analysis, 2014
This paper investigates the Hankel norm filter design problem for stochastic time-delay systems, which are represented by Takagi-Sugeno (T-S) fuzzy model.
Yanhui Li, Xiujie Zhou
doaj   +1 more source

Structural-Missing Tensor Completion for Robust DOA Estimation with Sensor Failure

open access: yesApplied Sciences, 2023
Array sensor failure poses a serious challenge to robust direction-of-arrival (DOA) estimation in complicated environments. Although existing matrix completion methods can successfully recover the damaged signals of an impaired sensor array, they cannot ...
Bin Li   +4 more
doaj   +1 more source

Multipole matrix elements of Green function of Laplace equation [PDF]

open access: yes, 2015
Multipole matrix elements of Green function of Laplace equation are calculated. The multipole matrix elements of Green function in electrostatics describe potential on a sphere which is produced by a charge distributed on the surface of a different ...
Górka, Przemysław, Makuch, Karol
core   +1 more source

Hankel and Toeplitz operators: continuous and discrete representations [PDF]

open access: yesOpuscula Mathematica, 2017
We find a relation guaranteeing that Hankel operators realized in the space of sequences \(\mathcal{l}^2 (\mathbb{Z}_{+})\) and in the space of functions \(L^2 (\mathbb{R}_{+})\) are unitarily equivalent.
Dmitri R. Yafaev
doaj   +1 more source

Bearing Fault Diagnosis Method Based on Improved Singular Value Decomposition Package

open access: yesSensors, 2023
The singular value decomposition package (SVDP) is often used for signal decomposition and feature extraction. At present, the general SVDP has insufficient feature extraction ability due to the two-row structure of the Hankel matrix, which leads to mode
Huibin Zhu   +4 more
doaj   +1 more source

Realtime Detection of PMU Bad Data and Sequential Bad Data Classifications in Cyber-Physical Testbed

open access: yesIEEE Access, 2023
Modern Smart Grids incorporate physical power grids and cyber systems, creating a cyber-physical system. phasor measurement units (PMUs) transmit time synchronized measurement data from physical grid to the cyber system.
Imtiaj Khan, Virgilio Centeno
doaj   +1 more source

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