Results 11 to 20 of about 270,830 (185)

Sparse Array Mutual Coupling Reduction

open access: yesIEEE Open Journal of Antennas and Propagation
This paper provides a concise overview of recent developments in sparse antenna arrays, with a specific focus on techniques for reducing mutual coupling.
C. Larmour   +3 more
doaj   +4 more sources

Spiderweb Array: A Sparse Spin-Qubit Array

open access: yesPhysical Review Applied, 2022
19 pages, 16 ...
Jelmer M. Boter   +10 more
openaire   +5 more sources

ULA Fitting for Sparse Array Design [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
Sparse array (SA) geometries, such as coprime and nested arrays, can be regarded as a concatenation of two uniform linear arrays (ULAs). Such arrays lead to a significant increase of the number of degrees of freedom (DOF) when the second-order information is utilized, i.e., they provide long virtual difference coarray (DCA).
Vorobyov, Sergiy A.   +3 more
openaire   +2 more sources

Geometry of Random Sparse Arrays

open access: yes2022 56th Asilomar Conference on Signals, Systems, and Computers, 2022
Peer ...
Hücümcnoglu, Mehmet Can   +3 more
openaire   +2 more sources

3D Coprime Arrays in Sparse Sensing [PDF]

open access: yesICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019
Coprime arrays are a class of sensor arrays that play a crucial role in various signal processing tasks because of their desirable properties such as sparsity and increased degrees of freedom (DOF) of coarrays. In this contribution, a new class of three-dimensional (3D) arrays is constructed from pure cubic fields.
Li, C, Gan, L, Ling, C
openaire   +2 more sources

DOA Estimation in Partially Correlated Noise Using Low-Rank/Sparse Matrix Decomposition [PDF]

open access: yes, 2014
We consider the problem of direction-of-arrival (DOA) estimation in unknown partially correlated noise environments where the noise covariance matrix is sparse. A sparse noise covariance matrix is a common model for a sparse array of sensors consisted of
Babaie-Zadeh, Massoud   +4 more
core   +1 more source

Optimal Design of Sparse Array for Ultrasonic Total Focusing Method by Binary Particle Swarm Optimization

open access: yesIEEE Access, 2020
Ultrasonic phased array technology is used in various fields. Traditional full phased arrays place elements in every position of a uniform lattice with half-wavelength spacing between the lattice points, so the hardware cost is very high.
Han Zhang   +3 more
doaj   +1 more source

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

Lensless wide-field fluorescent imaging on a chip using compressive decoding of sparse objects. [PDF]

open access: yes, 2010
We demonstrate the use of a compressive sampling algorithm for on-chip fluorescent imaging of sparse objects over an ultra-large field-of-view (>8 cm(2)) without the need for any lenses or mechanical scanning.
Coskun, Ahmet F   +3 more
core   +2 more sources

Synthesis of sparse planar arrays

open access: yesElectronics Letters, 1997
A synthesis method is proposed that is aimed at designing a planar, sparse, and aperiodic array to be used in a beamforming processor. This method minimises the number of elements able to generate a beam pattern that fulfils various a priori fixed constraints. The obtained results are better than those proposed in related literature.
TRUCCO, ANDREA, E. OMODEI, P. REPETTO
openaire   +2 more sources

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