Results 11 to 20 of about 21,315 (262)

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

Wide Field of View Retrodirective Millimeter Wave Antenna Array With Pulse Modulation and Orthogonal Polarization States

open access: yesIEEE Access, 2020
This work presents novel techniques to realize a retrodirective millimeter wave antenna array with wide field of view. High gain arrays in phase conjugate configuration are used in combination with orthogonal polarization states and a novel pulse ...
Ahmed Bilal Numan   +2 more
doaj   +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

3-Uniform states and orthogonal arrays

open access: yesResults in Physics, 2016
We propose a criterion for the k-uniform state via local unitary transformation invariant and find for what N there are 3-uniform states of N-qubits.
Xin-wei Zha, Irfan Ahmed, Yanpeng Zhang
doaj   +1 more source

Binary (k, k)-Designs

open access: yesMathematics, 2020
We introduce and investigate binary (k,k)-designs, a special case of T-designs. Our combinatorial interpretation relates (k,k)-designs to the binary orthogonal arrays.
Todorka Alexandrova   +2 more
doaj   +1 more source

Orthogonal Printed Microstrip Antenna Arrays for 5G Millimeter-Wave Applications

open access: yesMicromachines, 2021
This article presents the design of a planar MIMO (Multiple Inputs Multiple Outputs) antenna comprised of two sets orthogonally placed 1 × 12 linear antenna arrays for 5G millimeter wave (mmWave) applications.
Muhammad M. Hossain   +2 more
doaj   +1 more source

DoE.MIParray: An R Package for Algorithmic Creation of Orthogonal Arrays

open access: yesJournal of Open Research Software, 2020
The R package DoE.MIParray uses mixed integer optimization for creating well-balanced arrays for experimental designs. Its use requires availability of at least one of the commercial optimizers Gurobi or Mosek.
Ulrike Grömping
doaj   +1 more source

Derandomizing Compressed Sensing With Combinatorial Design

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Compressed sensing is the art of effectively reconstructing structured n-dimensional vectors from substantially fewer measurements than naively anticipated. A plethora of analytical reconstruction guarantees support this credo.
Peter Jung   +2 more
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

Constructions of irredundant orthogonal arrays

open access: yesAdvances in Mathematics of Communications, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Guangzhou Chen, Xiaotong Zhang
openaire   +3 more sources

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