Results 11 to 20 of about 3,485 (183)
Thinned coprime arrays for DOA estimation [PDF]
2017 25th European Signal Processing Conference (EUSIPCO), 2017 Sparse arrays can generate a larger aperture than traditional uniform linear arrays (ULA) and offer enhanced degrees-of-freedom (DOFs) which can be exploited in both beamforming and direction-of-arrival (DOA) estimation. One class of sparse arrays is the
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Sparse Sensing with Semi-Coprime Arrays [PDF]
The Journal of the Acoustical Society of America, 2018 A semi-coprime array (SCA) interleaves two undersampled uniform linear arrays (ULAs) and a $Q$ element standard ULA. The undersampling factors of the first two arrays are $QM$ and $QN$ respectively where $M$ and $N$ are coprime. The resulting non-uniform
Adhikari, Kaushallya
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COPRIME ARRAY PARAMETERS OPTIMIZATION FOR DOA ESTIMATION
Iraqi Journal of Information & Communication Technology, 2021 Sparse array such as the coprime array is one of the most preferable sparse arrays for direction of arrival estimation due to its properties, like simplicity, capability of resolving more sources than the number of elements and resistance to mutual ...
Fatimah A. Salman, Bayan M. Sabbar
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Direct Position Determination of Multiple Non-Circular Sources with a Moving Coprime Array [PDF]
Sensors, 2018 Direct position determination (DPD) is currently a hot topic in wireless localization research as it is more accurate than traditional two-step positioning.
Yankui Zhang +4 more
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DOA Estimation based on the Optimized Coprime Array Configuration
IEEE Access, 2019 In this paper, a direction-of-arrival (DOA) estimation based on the optimized coprime array (OpCA) configuration is proposed. The proposed array, utilizing the two constituting subarrays N-array and M-array of the coprime array, where their sensors are N
Ahmed Mohammed Ahmed Shaalan, Xiangyu Yu
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A Search-free DOA Estimation Algorithm for Coprime Arrays [PDF]
Digital Signal Processing, 2014 Recently, coprime arrays have been in the focus of research because of their potential in exploiting redundancy in spanning large apertures with fewer elements than suggested by theory.
Djuric, Petar, Weng, Zhiyuan
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Direction-of-Arrival Estimation for Both Uncorrelated and Coherent Signals in Coprime Array
IEEE Access, 2019 Direction-of-arrival (DOA) estimation in coprime array involves the problem that there is the coexistence of both uncorrelated signals and coherent signals in the multipath environment.
Haiyun Xu +4 more
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Off-grid hydroacoustic signal orientation estimation based on interpolation and subspace fitting in coprime arrays. [PDF]
PLoS ONEThis letter presents a novel approach to sparse Bayesian underwater acoustic signal direction estimation. The proposed method incorporates interpolation of the coprime array and signal subspace fitting.
Chuanxi Xing +4 more
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Array Diagnosis and DOA Estimation for Coprime Array under Sensor Failures. [PDF]
Sensors (Basel), 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. However, the structure of difference coarray is sensitive to sensor failures.
Sun B, Wu C, Ruan H.
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Structured autocorrelation matrix estimation for coprime arrays [PDF]
Signal Processing, 2021 A coprime array receiver processes a collection of received-signal snapshots to estimate the autocorrelation matrix of a larger (virtual) uniform linear array, known as coarray. By the received-signal model, this matrix has to be (i) Positive-Definite, (ii) Hermitian, (iii) Toeplitz, and (iv) its noise-subspace eigenvalues have to be equal.
Dimitris G. Chachlakis +1 more
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