Results 11 to 20 of about 9,941 (162)

Inverse Numerical Range and Determinantal Quartic Curves

open access: yesMathematics, 2020
A hyperbolic ternary form, according to the Helton–Vinnikov theorem, admits a determinantal representation of a linear symmetric matrix pencil. A kernel vector function of the linear symmetric matrix pencil is a solution to the inverse numerical range ...
Mao-Ting Chien, Hiroshi Nakazato
doaj   +1 more source

Matrix pencil and system poles [PDF]

open access: yesSignal Processing, 1990
Abstract Poles of a linear time-invariant system can be extracted from a matrix pencil constructed from the transient response of the system. Three subspace filtering techniques applicable to the matrix pencil method are presented briefly in a unified way.
Hua, Yingbo, Sarkar, Tapan K
openaire   +3 more sources

Pseudospectra of Loewner Matrix Pencils

open access: yes, 2022
Loewner matrix pencils play a central role in the system realization theory of Mayo and Antoulas, an important development in data-driven modeling. The eigenvalues of these pencils reveal system poles. How robust are the poles recovered via Loewner realization?
Mark Embree, Antonio Cosmin Ionita
openaire   +2 more sources

Estimation of Wideband Multi-Component Phasors Considering Signal Damping

open access: yesSensors, 2023
Harmonic and interharmonic content in power system signals is increasing with the development of renewable energy generation and power electronic devices.
Dongfang Zhao   +4 more
doaj   +1 more source

Convergent matrix pencils

open access: yesApplied Mathematics Letters, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lucas Jódar, M. Consuelo Casabán
openaire   +1 more source

Supraharmonics Measurement Based on Colored Noise Suppressed Matrix Pencil Method

open access: yesIEEE Access, 2023
Supraharmonics emitted from power electronic devices can cause electromagnetic interference. However, there is currently no unified standard for measuring supraharmonics.
Kaite Li   +3 more
doaj   +1 more source

Blind Multiuser Detection for Long-Code CDMA Systems with Transmission-Induced Cyclostationarity

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
We consider blind channel identification and signal separation in long-code CDMA systems. First, by modeling the received signals as cyclostationary processes with modulation-induced cyclostationarity, long-code CDMA system is characterized using a time ...
Li Tongtong   +3 more
doaj   +2 more sources

Definitizable hermitian matrix pencils

open access: yesAequationes Mathematicae, 1992
The paper presents three characterizations of strongly definitizable pencils, which generalize the classical results for definite pencils. They are in particular stably simultaneously diagonable. Also this form of stability is discussed with respect to an open subset of the real line. Implications for some quadratic eigenvalue problems are included.
LANCASTER, P., Ye, Qiang
openaire   +2 more sources

About canonical forms of regular matrix pencil

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2013
The algorithm of local reduction of the regular matrix pencil to canonical form is constructed in the article.
P. F. Samusenko
doaj   +1 more source

Application of the Non-Hermitian Singular Spectrum Analysis to the Exponential Retrieval Problem

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2020
Introduction. In practical signal processing and its many applications, researchers and engineers try to find a number of harmonics and their frequencies in a time signal contaminated by noise. In this manuscript we propose a new approach to this problem.
D. J. Nicolsky, G. S. Tipenko
doaj   +1 more source

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