Results 141 to 150 of about 281 (164)
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DOA estimation based on the difference and sum coarray for coprime arrays
Digital Signal Processing, 2017Abstract In this paper, we construct a novel coarray named as the difference and sum (diff–sum) coarray by exploiting an improved Conjugate Augmented MUSIC (CAM) estimator, which utilizes both the temporal information and the spatial information. The diff–sum coarray is the union of the difference coarray and the sum coarray.
Xinghua Wang, Shiwei Ren, Shan Cao
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Difference Coarray Design based on Genetic Algorithm and Convex Optimization
2021 OES China Ocean Acoustics (COA), 2021Large hydrophone array is an effective device for receiving acoustic signals in the ocean. In order to reduce engineering costs while meeting the needs of performance, a sparse array design method is proposed in this paper. This method combines genetic algorithm and convex optimization weighting to design a special sparse array named Difference Coarray
Lening Wang, Hangfang Zhao
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Extended Coprime Arrays with Sum-Difference Coarray for DOA Estimation
2022 IEEE 5th International Conference on Electronic Information and Communication Technology (ICEICT), 2022Yingsong Li, Zhixiang Huang
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A Nested Array Geometry with Enhanced Degrees of Freedom and Hole- Free Difference Coarray
2021 29th European Signal Processing Conference (EUSIPCO), 2021Steven Wandale, Koichi Ichige
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The Compressed Nested Array for Underdetermined DOA Estimation by Fourth-order Difference Coarrays
ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2020In this paper, a new sparse array structure, which further improves the degrees of freedom (DOFs) and enhanced the DOA estimation performance, for the fourth-order cumulant based direction of arrival (DOA) estimation is proposed. The new-formed array is hole-free and can achieve a large consecutive range in its fourth-order difference coarray.
Yan Zhou 0015 +4 more
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Improved Nested Arrays With Sum-Difference Coarray for DOA Estimation
IEEE Sensors Journal, 2019In this paper, we propose two kinds of improved nested arrays for direction of arrival (DOA) estimation, which are obtained by rearranging physical sensors of the prototype nested array. Specifically, the sum-difference coarrays (SDCAs) of the proposed arrays are constructed by jointly using the temporal and spatial information of the received signal ...
Weijian Si +3 more
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A New Nested MIMO Array With Increased Degrees of Freedom and Hole-Free Difference Coarray
IEEE Signal Processing Letters, 2018We propose a new antenna array design approach for a multiple-input and multiple-output (MIMO) radar, which has closed-form expressions for the sensor locations and the number of achievable degrees of freedom (DOFs). This new approach utilizes the nested array as transmitting and receiving arrays.
Minglei Yang, Xin Yuan, Baixiao Chen
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Robust Sparse Arrays with Multiple-Fold Redundant Difference Coarrays
2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019Spares arrays can attain $O(N^{2})$ degrees of freedom (DOF) usingonly $N$ physical sensors, which profits from the $O(N^{2})$ length of the central uniform linear array (ULA) segment in their difference coarray (DCA). To obtain the optimal DOF performance, the single-fold redundant DCA (that is, each element of DCA occurs as only once as ...
Dong Zhu, Gang Li
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Multidimensional Systems and Signal Processing, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yan Huang 0018 +4 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yan Huang 0018 +4 more
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Sum and difference coarrays based 2-D DOA estimation with co-prime parallel arrays
2017 9th International Conference on Wireless Communications and Signal Processing (WCSP), 2017This paper proposes a symmetric co-prime parallel array (S-CPPA) configuration for two-dimensional direction of arrival (2-D DOA) estimation. Specifically, the S-CPPA consists of a co-prime pair of symmetric uniform linear subarrays (ULAs). By vectorizing the cross-correlation matrix of the received signals, the sum and difference coarrays perspective ...
Junpeng Shi +3 more
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