Results 31 to 40 of about 9,941 (162)

Estimating Angle-of-Arrival and Time-of-Flight for Multipath Components Using WiFi Channel State Information

open access: yesSensors, 2018
Channel state information (CSI) collected during WiFi packet transmissions can be used for localization of commodity WiFi devices in indoor environments with multipath propagation.
Afaz Uddin Ahmed   +5 more
doaj   +1 more source

The matrix pencil as a tunable filter

open access: yesJournal of Magnetic Resonance
Despite inherent sensitivity constraints, nuclear magnetic resonance (NMR) plays an indispensable role in probing molecular structures and dynamics across scientific disciplines. Remarkably, while extensive efforts have targeted instrumental and experimental sensitivity improvements, comparatively little focus has been dedicated to sensitivity ...
S N, Fricke   +3 more
openaire   +2 more sources

Matrix Pencil Optimal Iterative Algorithms and Restarted Versions for Linear Matrix Equation and Pseudoinverse

open access: yesMathematics
We derive a double-optimal iterative algorithm (DOIA) in an m-degree matrix pencil Krylov subspace to solve a rectangular linear matrix equation. Expressing the iterative solution in a matrix pencil and using two optimization techniques, we determine the
Chein-Shan Liu   +2 more
doaj   +1 more source

Photonic-Assisted Scanning Receivers for Microwave Frequency Measurement

open access: yesApplied Sciences, 2019
We present a novel technique based on matrix pencil assisted deconvolution to improve the measurement resolution in scanning receiver systems for microwave frequency measurements.
Shijie Song   +7 more
doaj   +1 more source

Ray pencils of general divergency

open access: yesAfrican Vision and Eye Health, 2009
That a thin refracting element can have a dioptric power which is asymmetric immediately raises questions at the fundamentals of linear optics.  In optometry the important concept of vergence, in particular, depends on the concept of a pencil of rays ...
W. F. Harris
doaj   +1 more source

On generalized inverses of singular matrix pencils [PDF]

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2011
On generalized inverses of singular matrix pencilsLinear time-invariant networks are modelled by linear differential-algebraic equations with constant coefficients. These equations can be represented by a matrix pencil. Many publications on this subject are restricted to regular matrix pencils.
Klaus Röbenack, Kurt Reinschke
openaire   +2 more sources

Simplest miniversal deformations of matrices, matrix pencils, and contragredient matrix pencils

open access: yesLinear Algebra and its Applications, 1999
V. I. Arnold [Russian Math. Surveys 26 (2) (1971) 29-43] constructed a simple normal form for a family of complex n-by-n matrices that smoothly depend on parameters with respect to similarity transformations that smoothly depend on the same parameters. We construct analogous normal forms for a family of real matrices and a family of matrix pencils that
Isabel Garcı́a-Planas, M.   +1 more
openaire   +3 more sources

Poles Extraction of Underwater Targets Based on Matrix Pencil Method

open access: yesIEEE Access, 2020
The majority of the sonic frequency bands used in active sonar detection and identification are within the resonance region of the target. The poles of target are very important characteristics of the resonance region. This paper analyzes and studies the
Xuefei Ma   +4 more
doaj   +1 more source

Equivalence of Matrix Pencil and HTLS Ring-Down Electromechanical Mode Identification Algorithms

open access: yesIEEE Access, 2023
Matrix pencil and Hankel total least squares (HTLS) are two popular ring-down electro- mechanical mode identification algorithms. The appeal of these algorithms can be attributed to faster execution due to the non-iterative procedure of model order ...
Krishna Rao, K. N. Shubhanga
doaj   +1 more source

Improving the Accuracy of the Pencil of Function Method Increasing Its Matrix Polynomial Degree

open access: yesMathematics
The estimation of complex natural frequencies in linear systems through their transient response analysis is a common practice in engineering and applied physics. In this context, the conventional Generalized Pencil of Function (GPOF) method that employs
Raul H. Barroso, Alfonso J. Zozaya Sahad
doaj   +1 more source

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