Generalized Nested Array: Optimization for Degrees of Freedom and Mutual Coupling
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2018.2821672
Abstract: In this letter, we propose a generalized nested array (GNA) with two flexible co-prime factors for enlarging the inter-element spacing of two concatenated uniform linear subarrays. It is shown that both the prototype nested array… read more here.
Keywords: array; mutual coupling; degrees freedom; generalized nested ... See more keywords
Improved DFT Algorithm for 2D DOA Estimation Based on 1D Nested Array Motion
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2020.2997030
Abstract: In this letter, two-dimensional (2D) direction of arrival (DOA) estimation using one-dimensional (1D) nested array motion is studied, and an improved Discrete Fourier transform (DFT) algorithm is proposed. Exploiting nested array to move vertically along… read more here.
Keywords: estimation; doa estimation; nested array; dft algorithm ... See more keywords
2-D Direction FindingWith Pair-Matching Operation for L-Shaped Nested Array
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2020.3033152
Abstract: In this letter, we devise a new approach for two-dimensional (2-D) direction finding using an L-shaped array structured by two nested arrays. By vectorizing the covariance matrices of the nested array outputs, the elevation and… read more here.
Keywords: matrix; pair matching; direction; covariance ... See more keywords
Robust DOA Estimation Against Mutual Coupling With Nested Array
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2020.3011314
Abstract: In this letter, we focus on the problem of direction-of-arrival (DOA) estimation with a nested array in the presence of unknown mutual coupling. Firstly, the measurement model of the nested array with mutual coupling is… read more here.
Keywords: doa estimation; mutual coupling; nested array; coupling ... See more keywords
DOA Estimation Based on Pseudo-Noise Subspace for Relocating Enhanced Nested Array
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3199149
Abstract: In this letter, a novel relocating enhanced nested array (RENA) configuration is proposed. Compared with most existing sparse array configurations, the proposed RENA has a hole-free difference co-array, simple closed expressions for the array geometry… read more here.
Keywords: enhanced nested; doa estimation; relocating enhanced; nested array ... See more keywords
A Generalized Extended Nested Array Design via Maximum Inter-Element Spacing Criterion
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2023.3238912
Abstract: This letter proposes a generalised extended nested array with multiple subarrays (GENAMS) array via the maximum inter-element spacing (IES) constraint principle. Based on the IES set patterns of the two-sides extended nested array and the… read more here.
Keywords: genams array; extended nested; nested array; maximum inter ... See more keywords
A DOA Tracking Method Based on Offset Compensation Using Nested Array
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2021.3114025
Abstract: In this brief, DOA tracking using a nested array (NA) is discussed and a modified tracking method is proposed. Discrete Fourier transform (DFT) is firstly used to estimate DOAs at the beginning moment. Thereafter, we… read more here.
Keywords: using nested; nested array; doa tracking; doa ... See more keywords
Augmented Nested Arrays With Enhanced DOF and Reduced Mutual Coupling
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2017.2736493
Abstract: Recently, nonuniform linear arrays (e.g., coprime/nested array) have attracted great attention of researchers in array signal processing field due to its ability to generate virtual difference coarrays. In the array design, a critical problem is where… read more here.
Keywords: mutual coupling; nested array; augmented nested; nested arrays ... See more keywords
Interference Management and User Association for Nested Array-Based Massive MIMO HetNets
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2017.2741900
Abstract: The nested array, implemented by nonuniform antenna placement, is an effective approach to achieve $O(N^2)$ degrees of freedom (DOF) with an antenna array of $N$ antennas. Such DOF refers to the number of directions of… read more here.
Keywords: user association; nested array; number; interference ... See more keywords
TRIPLE TWO-LEVEL NESTED ARRAY WITH IMPROVED DEGREES OF FREEDOM
Sign Up to like & getrecommendations! Published in 2019 at "Progress In Electromagnetics Research B"
DOI: 10.2528/pierb19031603
Abstract: A triple two-level nested array (TTNA) configuration is proposed for direction-of-arrival (DOA) estimation of multiple time-space signals. The proposed TTNA consists of multiple two-level nested arrays, and the distance between two adjacent nested arrays is… read more here.
Keywords: nested arrays; level nested; two level; triple two ... See more keywords
Hole-Free Nested Array with Three Sub-ULAs for Direction of Arrival Estimation
Sign Up to like & getrecommendations! Published in 2023 at "Sensors"
DOI: 10.3390/s23115214
Abstract: Sparse arrays are of deep concern due to their ability to identify more sources than the number of sensors, among which the hole-free difference co-array (DCA) with large degrees of freedom (DOFs) is a topic… read more here.
Keywords: nested array; hole free; free nested; array three ... See more keywords