Results 21 to 30 of about 660,831 (348)

A new array extension configuration method based on nesting and minimum redundancy

open access: yesIET Radar, Sonar & Navigation, 2023
While the uniform linear array (ULA) is a well‐known array configuration being widely used in various practical application scenarios, it also encounters numerous challenges in the field of direction‐of‐arrival (DOA) estimation.
He Ma   +3 more
doaj   +1 more source

Direction of Arrival Estimation of Generalized Nested Array via Difference–Sum Co-Array

open access: yesSensors, 2023
To address the weakness that the difference co-array (DCA) only enhances the degrees of freedom (DOFs) to a limited extent, a new configuration called the generalized nested array via difference–sum co-array (GNA-DSCA) is proposed for direction of ...
Yule Zhang   +5 more
doaj   +1 more source

An Inclusive Survey on Array Antenna Design for Millimeter-Wave Communications

open access: yesIEEE Access, 2019
The enormous growth of wireless data traffic in recent years has made the millimeter-wave (mm-wave) technology as a good fit for high-speed communication systems. Extensive works are continuing from the device to system, to the radio architecture, to the
Saswati Ghosh, Debarati Sen
doaj   +1 more source

Minimal Energy Configurations of Finite Molecular Arrays [PDF]

open access: yesSymmetry, 2019
In this paper, we consider the problem of characterizing the minimum energy configurations of a finite system of particles interacting between them due to attractive or repulsive forces given by a certain intermolecular potential. We limit ourselves to the cases of three particles arranged in a triangular array and that of four particles in a ...
Negrón-Marrero, Pablo V.   +1 more
openaire   +2 more sources

Analysis of Passive Partial Shading Mitigation Technique for PV Array [PDF]

open access: yesJournal of Renewable Energy and Environment
In the present day, a significant portion of the world's energy demand can be satisfied through the utilization of renewable energy sources. Solar energy, in particular, holds a pivotal position owing to its numerous merits. However, it faces a challenge
Santosh B, Mohamed Ansari M, Kantarao P.
doaj   +1 more source

Selective stimulation of rat sciatic nerve using an array of mm-size magnetic coils: a simulation study

open access: yesHealthcare Technology Letters, 2019
This work proposes and computationally investigate the use of magnetic neural stimulation as an alternative to electrical stimulation to achieve selective activation of rat sciatic nerve.
Pragya Kosta   +3 more
doaj   +1 more source

Locking and wavelength selection of an ultra-collimated single-mode diode laser bar by a volume holographic grating [PDF]

open access: yes, 2013
Wavelength-locking by a volume holographic grating (VHG) is reported for a diode laser bar with 49 single mode emitters, fitted with a dual-axis collimation phase-plate for smile elimination and excellent beam pointing correction.
Baker, Howard John   +2 more
core   +1 more source

Optimal antenna configurations for the BIMA Array [PDF]

open access: yesInternational Astronomical Union Colloquium, 1991
AbstractWe attempt to determine optimal configurations of six antennas for the proposed Berkeley Illinois Maryland Array. The instrumental response is used as a performance measure. A two dimensional sine function is chosen as the ideal beam, supported by theoretical considerations.
Thatte, N, Welch, W
openaire   +2 more sources

L-Shaped Sparse Array Structure for 2-D DOA Estimation

open access: yesIEEE Access, 2020
In order to improve the performance of two-dimensional (2-D) direction-of-arrival (DOA) estimation, an L-shaped sparse array structured by two new sparse linear arrays is proposed. Each part of the proposed L-shaped array is used for one-dimensional (1-D)
Fan Wu   +5 more
doaj   +1 more source

Optimization of array configuration [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1987
The following article appeared as: Penner, A.R. (1987). Optimization of array configuration. Journal of the Acoustical Society of America, 82(6), 2152-2154, and may be found at: http://dx.doi.org/10.1121/1.395661.
openaire   +3 more sources

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