Results 41 to 50 of about 26,670 (208)

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

Spectral and scattering theory of self-adjoint Hankel operators with piecewise continuous symbols [PDF]

open access: yes, 2014
We develop the spectral and scattering theory for self-adjoint Hankel operators $H$ with piecewise continuous symbols. In this case every jump of the symbol gives rise to a band of the absolutely continuous spectrum of $H$.
Pushnitski, Alexander, Yafaev, Dmitri
core   +5 more sources

Note on the Hankel matrix

open access: yesElectronics Letters, 1991
A new property of Hankel matrix is presented which can be used to compute the characteristic polynomial of the system from the measurements of its impulse-response data. The property is also illustrated by a numerical example.
Albert Y. Zomaya, V. Sreeram
openaire   +2 more sources

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.
Michael A. Arbib, Ernest G. Manes
openaire   +2 more sources

The Lanczos algorithm and Hankel matrix factorization

open access: yesLinear Algebra and its Applications, 1992
AbstractWe explore the connections between the Lanczos algorithm for matrix tridiagonalization and two fast algorithms for Hankel matrix factorization. We show how the asymmetric Lanczos process is related to the Berlekamp-Massey algorithm, and how the symmetrized Lanczos process is related to the Phillips algorithm.
Tong J. Lee   +2 more
openaire   +2 more sources

Relatively Prime Polynomials and Nonsingular Hankel Matrices over Finite Fields [PDF]

open access: yes, 2010
The probability for two monic polynomials of a positive degree n with coefficients in the finite field F_q to be relatively prime turns out to be identical with the probability for an n x n Hankel matrix over F_q to be nonsingular.
Benjamin   +13 more
core   +2 more sources

Applications of Hankel and Regular Matrices in Fourier Series

open access: yesAbstract and Applied Analysis, 2013
Recently, Alghamdi and Mursaleen (2013) used the Hankel matrix to determine the necessary and suffcient condition to find the sum of the Walsh-Fourier series.
Abdullah Alotaibi, M. Mursaleen
doaj   +1 more source

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

Factorizations of Hermitian block Hankel matrices [PDF]

open access: yes, 1992
The basic results of N.I. Achiezer and M.G. Krein from the classical polynomial moment theory are concerned with certain representations of elements of a positive difinite Hankel matrix.
Tismenetsky, Miron
core   +1 more source

Matrix representations of Toeplitz-plus-Hankel matrix inverses

open access: yesLinear Algebra and its Applications, 1989
AbstractInverses of Toeplitz-plus-Hankel matrices and, more generally, T+H-Bezoutians are represented as sums of products of triangular Toeplitz and Hankel matrices. The parameters occurring in these representations can be determined with the help of (1) solutions of “fundamental equations,” (2) solutions of a certain homogeneous equation, and (3 ...
Georg Heinig, Karla Rost
openaire   +2 more sources

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