Results 21 to 30 of about 26,525 (190)

A Proposed Quantum Framework for Low-Complexity Quantum Simulation and Spectrum Estimation of Hankel-Patterned Systems

open access: yesIEEE Transactions on Quantum Engineering, 2023
The structured matrix completion problem (SMCP) is ubiquitous in several signal processing applications. In this article, we consider a fixed pattern, namely, the Hankel-structure for the SMCP under quantum formalism. By exploiting its structure, a lower-
Mostafizur Rahaman Laskar   +1 more
doaj   +1 more source

Analytical solutions to some generalized and polynomial eigenvalue problems

open access: yesSpecial Matrices, 2021
It is well-known that the finite difference discretization of the Laplacian eigenvalue problem −Δu = λu leads to a matrix eigenvalue problem (EVP) Ax =λx where the matrix A is Toeplitz-plus-Hankel.
Deng Quanling
doaj   +1 more source

A partial sum of singular‐value‐based reconstruction method for non‐uniformly sampled NMR spectroscopy

open access: yesIET Signal Processing, 2021
The nuclear magnetic resonance (NMR) spectroscopy has fruitful applications in chemistry, biology and life sciences, but suffers from long acquisition time.
Zhangren Tu   +7 more
doaj   +1 more source

Toeplitz versus Hankel: semibounded operators [PDF]

open access: yesOpuscula Mathematica, 2018
Our goal is to compare various results for Toeplitz \(T\) and Hankel \(H\) operators. We consider semibounded operators and find necessary and sufficient conditions for their quadratic forms to be closable. This property allows one to define \(T\) and \(
Dmitri R. Yafaev
doaj   +1 more source

Improved Data-Driven Stochastic Subspace Identification with Autocorrelation Matrix Modal Order Estimation for Bridge Modal Parameter Extraction Using GB-SAR Data

open access: yesBuildings, 2022
With the advantage of non-contact measurement, ground-based synthetic aperture radar (GB-SAR) has been widely used to obtain the dynamic deflection of various bridges.
Xianglei Liu   +4 more
doaj   +1 more source

Hankel matrix transforms and operators [PDF]

open access: yesJournal of Inequalities and Applications, 2012
The article under review concerns Hankel matrices and Hankel operators. Reviewer's remark: The paper contains errors. In particular, the paper contains the following result: Theorem 3.1. A Hankel matrix is regular if and only if (i) \(\lim_{n\to\infty}h_{n+k}=0\). (ii) \(\lim_{n\to\infty}\sum_{k=1}^\infty h_{n+k}=1\). (iii) \(\sup_n\sum_{k=1}^\infty|h_{
openaire   +2 more sources

EEMD and Multiscale PCA-Based Signal Denoising Method and Its Application to Seismic P-Phase Arrival Picking

open access: yesSensors, 2021
Signal denoising is one of the most important issues in signal processing, and various techniques have been proposed to address this issue. A combined method involving wavelet decomposition and multiscale principal component analysis (MSPCA) has been ...
Kang Peng, Hongyang Guo, Xueyi Shang
doaj   +1 more source

A Hankel Matrix Acting on Spaces of Analytic Functions [PDF]

open access: yesIntegral Equations and Operator Theory, 2017
If $ $ is a positive Borel measure on the interval $[0, 1)$ we let $\mathcal H_ $ be the Hankel matrix $\mathcal H_ =( _{n, k})_{n,k\ge 0}$ with entries $ _{n, k}= _{n+k}$, where, for $n\,=\,0, 1, 2, \dots $, $ _n$ denotes the moment of order $n$ of $ $. This matrix induces formally the operator $$\mathcal{H}_ (f)(z)= \sum_{n=0}^{\infty}\left(\
Daniel Girela, Noel Merchán
openaire   +4 more sources

Efficient Beampattern Synthesis for Sparse Frequency Diverse Array via Matrix Pencil Method

open access: yesSensors, 2022
Due to the introduction of frequency offsets, the pattern synthesis problem of sparse Frequency diverse array (FDA) becomes more complicated than that of the phased array. A typical way to solve this problem is to use a global optimization algorithm, but
Xiaolang Shao   +5 more
doaj   +1 more source

Foundations of system theory: The hankel matrix

open access: yesJournal of Computer and System Sciences, 1980
AbstractAfter introducing the notion of “dynamical interpretation functor” to provide a general methodology for nonlinear state-space description, we define the Hankel matrix for an arbitrary adjoint system. This returns the usual definition for linear systems, but also applies to sequential machines, group machines, and bilinear machines.
Arbib, Michael A., Manes, Ernest G.
openaire   +1 more source

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