Results 31 to 40 of about 270,830 (185)
IEEE Access, 2021 Minimum redundancy array (MRA) has the maximum aperture with continuous difference co-array among various sparse arrays with same number of physical sensors, but it is hard to calculate the sensor position of MRA and realize array design by using MRA. To
Geng Wang +4 more
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Bounds for sparse planar and volume arrays [PDF]
IEEE Transactions on Information Theory, 2001 Summary: This correspondence improves and extends bounds on the numbers of sensors, redundancies, and holes for sparse linear arrays to sparse planar and volume arrays. As an application, the efficiency of regular planar and volume arrays with redundancies, but no holes, is deduced.
Yann Meurisse, Jean Pierre Delmas
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IET Radar, Sonar & Navigation, 2023 Direction of arrival (DOA) estimation of mixed near‐field (NF) and far‐field (FF) signals is one of the key issues in the study of array signal processing. For more precise localisation performance, sparse arrays have drawn the attention of an increasing
Bo Du +4 more
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Iterative Weighted l1 Norm Constraint for Direction-of-Arrival Estimation with Sparse Coprime Array [PDF]
Jisuanji gongcheng, 2017 The sparse coprime array with determined elements can increase the array aperture.In order to make full use of the coprime relationship of the array to form differential coprime synthetic array with more degrees of freedom,this paper exploits the method ...
LIU Qinghua,ZHOU Xiuqing
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Journal of Telecommunications and Information Technology, 2021 Regular fully filled antenna arrays have been widely used in direction of arrival (DOA) estimation. However, practical implementation of these arrays is rather complex and their resolutions are limited to the beamwidth of the array pattern.
Jafar Ramadhan Mohammed
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Stochastic framework for evaluating the effect of displaced antenna elements on DOA estimation [PDF]
, 2017 We establish a statistical framework for investigating the influence of correlated random displacements of antenna elements in a uniform circular antenna array (UCA) on the distribution of direction-of-arrival (DOA) estimates. More specifically, we apply
Bruneel, Herwig +5 more
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Array imaging of localized objects in homogeneous and heterogeneous media [PDF]
, 2015 We present a comprehensive study of the resolution and stability properties of sparse promoting optimization theories applied to narrow band array imaging of localized scatterers.
Chai, Anwei +2 more
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Geometrically-Inspired Sparse MIMO Array Design for Enhanced mm-Wave Near-Field Imaging
IEEE AccessIn this paper, an efficient method of sparse MIMO array design is proposed to enhance the millimeter-wave near-field imaging by utilizing the geometric properties of the virtual array with uniform coverage of two-dimensional aperture and the minimal ...
Li Ding +4 more
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Design and Experiment of Multi-resolution Composite Digital Array Antenna
Leida xuebao, 2016 Because a sparse array has the advantages of a simplified structure and reduced cost in a radar system, radar technology based on the sparse array has gained widespread attention.
Tang Yue, Mao Tian, Jiang Bing
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A Proposed Design Method for Sparse Array Antenna by Using the Spacing Coefficient Algorithm
Applied Computational Intelligence and Soft Computing, 2022 One of the major challenges in developing various practical communication systems is reducing device complexity and development costs. In this study, a linear sparse array antenna design problem is addressed and a new approach for density taper element ...
Efri Sandi +3 more
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