Results 11 to 20 of about 274,780 (342)

Hilbert Bases for Orthogonal Arrays [PDF]

open access: yesJournal of Statistical Theory and Practice, 2007
In this paper, we relate the problem of generating all 2-level orthogonal arrays of given dimension and force, i.e. elements in OA$(n,m)$, where $n$ is the number of factors and $m$ the force, to the solution of an Integer Programming problem involving rational convex cones. We do not restrict the number of points in the array, i.e. we admit any number
CARLINI, ENRICO, PISTONE, Giovanni
openaire   +3 more sources

Virtual antenna array for reduced energy per bit transmission at Sub-5 GHz mobile wireless communication systems

open access: yesAlexandria Engineering Journal, 2023
This paper presents an innovative technique to synthesize a virtual antenna array (VAA) that consumes less energy than conventional antenna arrays that are used in mobile communications systems.
Mohammad Alibakhshikenari   +8 more
doaj   +1 more source

Millimeter-wave multi-mode circular antenna array for uni-cast multi-cast and OAM communication

open access: yesScientific Reports, 2021
This paper investigates uni-/multi-cast and orbital angular momentum (OAM) mode data transmission in orthogonal directions by the utilization of a new circular antenna array, operating at 28 GHz.
Stylianos D. Assimonis   +2 more
doaj   +1 more source

Erratum to “Orthogonal Genetic Algorithm for Planar Thinned Array Designs” [PDF]

open access: goldInternational Journal of Antennas and Propagation, 2013
Li Zhang   +3 more
doaj   +2 more sources

Generalized resolution for orthogonal arrays [PDF]

open access: yes, 2014
The generalized word length pattern of an orthogonal array allows a ranking of orthogonal arrays in terms of the generalized minimum aberration criterion (Xu and Wu [Ann. Statist. 29 (2001) 1066-1077]).
Grömping, Ulrike, Xu, Hongquan
core   +1 more source

On Orthogonal Arrays

open access: yesThe Annals of Mathematical Statistics, 1966
It was shown in [11] that one can construct orthogonal arrays $(\lambda 2^3, k + 1, 2, 3)$ from arrays $(\lambda 2^2, k, 2, 2)$ with the maximum number of constraints $k + 1$ provided that $k$ is the maximum number of constraints for the arrays of strength two. This result is generalized here to construction of arrays $(\lambda 2^{t + 1}, k + 1, 2, t +
Seiden, Esther, Zemach, Rita
openaire   +2 more sources

Use of orthogonal arrays and design of experiment via Taguchi L9 method in probability of default [PDF]

open access: yesAccounting, 2018
The Taguchi’s orthogonal array is based on a mathematical model of factorial designs. This paper investigates the effects of four parameters in Probability of Default (PD) using Black-Scholes model (BSM) for call option at one period by considering asset
Amir Ahmad Dar, N. Anuradha
doaj   +1 more source

The development of a position-sensitive CZT detector with orthogonal co-planar anode strips [PDF]

open access: yes, 2000
We report on the simulation, construction, and performance of prototype CdZnTe imaging detectors with orthogonal coplanar anode strips. These detectors employ a novel electrode geometry with non-collecting anode strips in one dimension and collecting ...
Hamel, L A   +7 more
core   +2 more sources

Matroidal Entropy Functions: A Quartet of Theories of Information, Matroid, Design, and Coding

open access: yesEntropy, 2021
In this paper, we study the entropy functions on extreme rays of the polymatroidal region which contain a matroid, i.e., matroidal entropy functions. We introduce variable strength orthogonal arrays indexed by a connected matroid M and positive integer v
Qi Chen, Minquan Cheng, Baoming Bai
doaj   +1 more source

Achieving 3D Beamforming by Non-Synchronous Microphone Array Measurements

open access: yesSensors, 2020
Beamforming technology is an essential method in acoustic imaging or reconstruction, which has been widely used in sound source localization and noise reduction.
Liang Yu, Qixin Guo, Ning Chu, Rui Wang
doaj   +1 more source

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