A Novel Noncircular MUSIC Algorithm Based on the Concept of the Difference and Sum Coarray [PDF]
Sensors, 2018 In this paper, we propose a vectorized noncircular MUSIC (VNCM) algorithm based on the concept of the coarray, which can construct the difference and sum (diff–sum) coarray, for direction finding of the noncircular (NC) quasi-stationary sources ...
Zhenhong Chen +3 more
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Array Diagnosis and DOA Estimation for Coprime Array under Sensor Failures [PDF]
Sensors, 2020 A coprime array of N sensors can achieve O ( N 2 ) degrees of freedom (DOFs) by possessing a uniform linear array segment of size O ( N 2 ) in the difference coarray.
Bing Sun, Chenxi Wu, Huailin Ruan
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Improved Coarray Interpolation Algorithms with Additional Orthogonal Constraint for Cyclostationary Signals [PDF]
Sensors, 2018 Many modulated signals exhibit a cyclostationarity property, which can be exploited in direction-of-arrival (DOA) estimation to effectively eliminate interference and noise.
Jinyang Song, Feng Shen
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An optimizing nested MIMO array with hole-free difference coarray [PDF]
MATEC Web of Conferences, 2018 According to the newly proposed nested MIMO (Multiple-Input Multiple-Input Multiple Output Multiple Array) array design method, we propose to replace the traditional nested array into an optimizing nested array, ie, to optimizing nested MIMO array design.
Liu Qiaoge +5 more
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An Improved DOA Estimation Approach Using Coarray Interpolation and Matrix Denoising [PDF]
Sensors, 2017 Co-prime arrays can estimate the directions of arrival (DOAs) of O ( M N ) sources with O ( M + N ) sensors, and are convenient to analyze due to their closed-form expression for the locations of virtual lags.
Muran Guo, Tao Chen, Ben Wang
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Underdetermined Direction-of-Arrival Estimation Using Difference Coarray in the Presence of Unknown Nonuniform Noise [PDF]
IEEE Access, 2019 The coarray techniques, e.g., nested and coprime arrays, can significantly improve degrees of freedom (DOFs) via constructing a so-called difference coarray, which enables underdetermined direction-of-arrival (DOA) estimation within reach in the presence
Guojun Jiang +5 more
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Improved Coprime Arrays With Reduced Mutual Coupling Based on the Concept of Difference and Sum Coarray [PDF]
IEEE Access, 2019 As is well known, the prototype coprime arrays consist of two collinear subarrays, whose physical sensor number is coprime to each other. Moreover, their larger inter-element separations and physical array apertures make them have less mutual coupling ...
Weijian Si +3 more
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Enhanced off-grid DOA estimation by corrected power Bayesian inference using difference coarray [PDF]
The Journal of Engineering, 2019 Sparse Bayesian inference for on-grid direction-of-arrival (DOA) estimation using difference coarray was investigated in the authors’ previous work to estimate more signal sources than the number of physical antenna elements. Sparse Bayesian inference is
Yanan Ma, Xianbin Cao, Xiangrong Wang
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Improved 2D Coprime Array Structure with the Difference and Sum Coarray Concept [PDF]
IEEE Access, 2020 Recently, the difference and sum (diff-sum) coarray has attracted much attention in one-dimensional direction-of-arrival estimation for its high degrees-of-freedom (DOFs).
Zesong Fei +3 more
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1-D and 2-D Direction of Arrival Estimation in a Conical Conformal Array: Design and Implementation [PDF]
Sensors, 2023 Direction of arrival (DOA) estimation for conformal arrays is challenging due to non-omnidirectional element patterns and shadow effects. Conical conformal array (CCA) can avoid the shadow effect at small elevation angles.
Hongyun Zhang +4 more
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