Results 21 to 30 of about 131,680 (187)
Achieving 3D Beamforming by Non-Synchronous Microphone Array Measurements
Sensors, 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
Construction of Binary Quantum Error-Correcting Codes from Orthogonal Array
Entropy, 2022 By using difference schemes, orthogonal partitions and a replacement method, some new methods to construct pure quantum error-correcting codes are provided from orthogonal arrays.
Shanqi Pang, Hanxiao Xu, Mengqian Chen
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Constructions of augmented orthogonal arrays [PDF]
Journal of Combinatorial Designs, 2018 AbstractAugmented orthogonal arrays (AOAs) were introduced by Stinson, who showed the equivalence between ideal ramp schemes and AOAs (Discrete Math. 341 (2018), 299–307). In this paper, we show that there is an AOAif and only if there is an OAwhich can be partitioned intosubarrays, each being an OA, and that there is a linear AOAif and only if there ...
Xin Wang, Lijun Ji, Yun Li, Miao Liang
openaire +3 more sources
Port Decoupling for Small Arrays by Means of an Eigenmode Feed Network [PDF]
, 2008 An alternative approach to port decoupling and matching of arrays with tightly coupled elements is proposed. The method is based on the inherent decoupling effect obtained by feeding the orthogonal eigenmodes of the array.
Coetzee, Jacob, Yu, Y
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On the Connection Coefficients of the Chebyshev-Boubaker Polynomials
The Scientific World Journal, 2013 The Chebyshev-Boubaker polynomials are the orthogonal polynomials whose coefficient arrays are defined by ordinary Riordan arrays. Examples include the Chebyshev polynomials of the second kind and the Boubaker polynomials.
Paul Barry
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Efficient decoupling schemes with bounded controls based on Eulerian orthogonal arrays [PDF]
, 2004 The task of decoupling, i.e., removing unwanted interactions in a system Hamiltonian and/or couplings with an environment (decoherence), plays an important role in controlling quantum systems.
A. S. Hedayat +5 more
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Loss Reduction in Distribution Networks With DG Units by Correlating Taguchi Method and Genetic Algorithm [PDF]
Iranian Journal of Electrical and Electronic Engineering, 2022 Optimal power flow is an essential tool in the study of power systems. Distributed generation sources increase network uncertainties due to their random behavior, so the optimal power flow is no longer responsive and the probabilistic optimal power flow ...
M. Najjarpour, B. Tousi, S. Jamali
doaj
Solution to the Mean King's problem with mutually unbiased bases for arbitrary levels [PDF]
, 2006 The Mean King's problem with mutually unbiased bases is reconsidered for arbitrary d-level systems. Hayashi, Horibe and Hashimoto [Phys. Rev. A 71, 052331 (2005)] related the problem to the existence of a maximal set of d-1 mutually orthogonal Latin ...
A. S. Holevo +10 more
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Statistical Theory and Related FieldsSpace-filling designs with superior low-dimensional properties are highly required in computer experiments. Strong orthogonal arrays (SOAs) represent a class of such designs that outperform ordinary orthogonal arrays in their stratification properties ...
Qiang Gao +3 more
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A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications [PDF]
, 2010 Contemporary 2D Ultrasonic arrays suffer from low SNR and limited steering capabilities. Yet, there is a great desire in the industry to increase the operational frequency, in order to enhance their volumetric imaging resolution.
Dziewierz, J. +4 more
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