Results 1 to 10 of about 103,159 (268)
Low Discrepancy Sparse Phased Array Antennas [PDF]
Sensors, 2021 Sparse arrays have grating lobes in the far field pattern due to the large spacing of elements residing in a rectangular or triangular grid. Random element spacing removes the grating lobes but produces large variations in element density across the ...
Travis Torres +4 more
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Multi-Objective Design and Optimization of Hardware-Friendly Grid-Based Sparse MIMO Arrays [PDF]
SensorsA comprehensive design framework is proposed for optimizing sparse MIMO (multiple-input, multiple-output) arrays to enhance multi-target detection. The framework emphasizes efficient utilization of antenna resources, including strategies for minimizing ...
Suleyman Gokhun Tanyer +5 more
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Research Progress and Prospect of Sparse Diversely Polarized Array Design
Leida xuebao, 2023 As compared with sparse scalar arrays and uniform diversely polarized arrays, sparse diversely polarized arrays show respectively advantages of possessing the ability of sensing the polarization state of source signals, avoiding polarization mismatch and
Yaxing YUE +4 more
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A Review of Sparse Sensor Arrays for Two-Dimensional Direction-of-Arrival Estimation
IEEE Access, 2021 Two-dimensional (2D) arrays are fundamental to localization applications. Specifically, sparse arrays can provide superior direction-of-arrival (DoA) estimation performance with limited number of sensors. There has been increased interest in the research
Ibrahim Aboumahmoud +3 more
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The Analysis of Using Spatial Smoothing for DOA Estimation of Coherent Signals in Sparse Arrays
International Journal of Antennas and Propagation, 2021 When there is coexistence of uncorrelated and coherent signals in sparse arrays, the conventional algorithms for direction-of-arrival (DOA) estimation using difference coarray fail.
Haiyun Xu +4 more
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An L-Shaped Three-Level and Single Common Element Sparse Sensor Array for 2-D DOA Estimation
Sensors, 2023 The degree of freedom (DOF) is an important performance metric for evaluating the design of a sparse array structure. Designing novel sparse arrays with higher degrees of freedom, while ensuring that the array structure can be mathematically represented,
Bo Du +4 more
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Synthesis of Sparse Arrays Based On CIGA (Convex Improved Genetic Algorithm)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020 In this paper, a novel hybrid algorithm on beam pattern synthesis of sparse arrays is proposed, which aims at minimizing the peak sidelobe level (PSLL). Sparse arrays can provide higher spatial resolution and relatively lower sidelobe than general arrays,
Jianxiong Li, Shuang Ren, Cuijuan Guo
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A Sparse-Array Design Method Using Q Uniform Linear Arrays for Direction-of-Arrival Estimation
Sensors, 2023 Nowadays, sparse arrays have been a hotspot for research in the direction of arrival (DOA). In order to achieve a big value for degrees of freedom (DOFs) using spatial smoothing methods, researchers try to use multiple uniform linear arrays (ULAs) to ...
Jin Zhang +3 more
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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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IEEE Access, 2019 Linear sparse arrays (coprime and nested arrays) have been studied extensively as a means of performing direction of arrival (DoA) estimation while bypassing Nyquist sampling theorem. However, rectangular sparse arrays have few studies, most of which are
Kaushallya Adhikari, Benjamin Drozdenko
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