Results 1 to 10 of about 497 (197)
Semi-Coprime Array with Staggered Beam-Steering of Sub-Arrays [PDF]
Sensors, 2023 A split-aperture array (SAA) is an array of sensors or antenna elements in which the array is split into two or more sub-arrays (SAs). Recently proposed SAAs, namely coprime and semi-coprime arrays, offer to attain a small half-power beamwidth (HPBW ...
Waseem Khan +6 more
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DOA Estimation Based on Real-Valued Cross Correlation Matrix of Coprime Arrays [PDF]
Sensors, 2017 A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the ...
Jianfeng Li, Defu Jiang
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A Sparse-Based Off-Grid DOA Estimation Method for Coprime Arrays [PDF]
Sensors, 2018 Recently, many sparse-based direction-of-arrival (DOA) estimation methods for coprime arrays have become popular for their excellent detection performance.
Weijian Si, Fuhong Zeng, Changbo Hou
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Passive beamforming with coprime arrays
IET Radar, Sonar and Navigation, 2017 Coprime arrays have been recently proposed as effective sparse configurations suitable for radar beamforming and angle‐of‐arrival estimation applications. In this study, a new approach for passive beamforming using coprime arrays is presented. In particular, a new detection strategy is proposed, which outperforms the coprime processors presently ...
Gerardo Di Martino, Antonio Iodice
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Enhanced Coprime Array Structure and DOA Estimation Algorithm for Coherent Sources [PDF]
SensorsThis paper presents a new enhanced coprime array for direction of arrival (DOA) estimation. Coprime arrays are capable of estimating the DOA using coprime properties and outperforming uniform linear arrays.
Xiaolei Han, Xiaofei Zhang
doaj +3 more sources
Design of coprime DFT arrays and filter banks [PDF]
2014 48th Asilomar Conference on Signals, Systems and Computers, 2014 Coprime arrays offer degrees of freedom of O(MN) given O(M +N) sensors, where M and N are coprime integers. The performance of coprime arrays is based on coprime DFT filter banks (coprime DFTFBs), which cascade an M-channel DFTFB and an N-channel DFTFB to achieve MN-channel filter banks.
Chun-Lin Liu, P P Vaidyanathan
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CAWE-ACNN Algorithm for Coprime Sensor Array Adaptive Beamforming [PDF]
SensorsThis paper presents a robust adaptive beamforming algorithm based on an attention convolutional neural network (ACNN) for coprime sensor arrays, named the CAWE-ACNN algorithm.
Fulai Liu +5 more
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Two-Dimensional DOA Estimation for Coprime Planar Arrays: From Array Structure Design to Dimensionality-Reduction Root MUSIC Algorithm [PDF]
SensorsThis paper proposes a novel sparse array design and an efficient algorithm for two-dimensional direction-of-arrival (2D-DOA) estimation. By analyzing the hole distribution in coprime arrays and introducing supplementary elements, we design a ...
Yunhe Shi +2 more
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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 +2 more
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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. A coprime array consists of two uniform linear subarrays with inter-element spacings $Mλ/2$ and $Nλ/2$, where $M$ and $N$ are coprime integers and $λ$ is the wavelength
Petar M Djuric
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