Results 11 to 20 of about 52,671 (258)
Geometry of Random Sparse Arrays
2022 56th Asilomar Conference on Signals, Systems, and Computers, 2022 Peer ...
Hücümcnoglu, Mehmet Can +3 more
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Sparse virtual array synthesis for MIMO radar imaging systems
IET Microwaves, Antennas & Propagation, 2021 Multiple‐input‐multiple‐output (MIMO) radar imaging systems require a high angular resolution to realize a high detectability level of the target directly related to the aperture size of the virtual array. Since in MIMO radars, the virtual array topology
Rabia Z. Syeda +2 more
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Sparse linear array with low mutual coupling ratio for DOA estimation
IET Communications, 2021 In order to reduce the mutual coupling ratio of sparse linear array, a new linear array structure with two sparse uniform linear arrays interleaved nested, is proposed in this paper.
Fan Wu +4 more
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Genetic Algorithm for Sparse Optimization of Mills Cross Array Used in Underwater Acoustic Imaging
Journal of Marine Science and Engineering, 2022 Underwater acoustic imaging employs a special form of array which includes numerous transducer elements to achieve beamforming. Although a large-scale array can bring high imaging resolution, it will also cause difficulties in hardware complexity and ...
Duo Teng +4 more
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3D Coprime Arrays in Sparse Sensing [PDF]
ICASSP 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
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IEEE 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
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L-Shaped Sparse Array Structure for 2-D DOA Estimation
IEEE 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
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Synthesis of sparse planar arrays
Electronics 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
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Optimization of Sparse Cross Array Synthesis via Perturbed Convex Optimization
Sensors, 2020 Three-dimensional (3-D) imaging sonar systems require large planar arrays, which incur hardware costs. In contrast, a cross array consisting of two perpendicular linear arrays can also support 3-D imaging while dramatically reducing the number of sensors.
Boxuan Gu +3 more
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Sensors, 2018 In this paper, the issue of direction of arrival (DOA) estimation is discussed, and a partial angular sparse representation (SR)-based method using a sparse separate nested acoustic vector sensor (SSN-AVS) array is developed.
Jianfeng Li, Zheng Li, Xiaofei Zhang
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