Results 31 to 40 of about 256 (131)
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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Enhance Degrees of Freedom for Coprime Array Using OptSpace Algorithm
IEEE Access, 2019 Coprime arrays, consisting of two subarrays with a co-prime number of physical sensors, can effectively resolve the direction-of-arrival (DOA) estimation when the number of sources exceeds the sensors. However, the conventional coprime array direction of
Qianpeng Xie, Xiaoyi Pan, Shunping Xiao
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Non-circular signal DOA estimation based on coprime array MIMO radar
EURASIP Journal on Advances in Signal Processing, 2021 Aiming at the problems of low degree of freedom, small array aperture, and phase ambiguity in traditional coprime array direction-of-arrival estimation methods, a non-circular signal DOA estimation method based on expanded coprime array MIMO radar is ...
Fei Zhang +4 more
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Passive beamforming with coprime arrays
IET Radar, Sonar & 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 ...
DI MARTINO, GERARDO, IODICE, ANTONIO
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n-tuple coprime sensor arrays [PDF]
The Journal of the Acoustical Society of America, 2017 Until now, coprime sensor arrays have used two sparsely spaced subarrays to emulate the performance of a single uniform array with many more sensors (generally on the order of the product of each subarrays' number of sensors). This allows for similar results with fewer sensors, or the observation of higher frequencies (above the Nyquist limit) with a ...
Dane, Bush, Ning, Xiang
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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. However, the structure of difference coarray is sensitive to sensor failures.
Sun, Bing, Wu, Chenxi, Ruan, Huailin
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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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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
Zhiyuan Weng, Petar M. Djuric
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DOA estimation of underwater acoustic co-frequency sources for the coprime vector sensor array
Frontiers in Marine Science, 2023 A coprime array with fewer sensors can achieve the same resolution as a uniform linear array. However, when detecting co-frequency targets, there can be prominent false alarms due to overlaps between the main and grating lobes of subarrays.
Xiao Chen +4 more
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Generalized and symmetric coprime planar array for direction of arrival estimation
IET Radar, Sonar & Navigation, 2022 Degrees of freedom and mutual coupling are two important factors to determine the ability of direction of arrival (DOA) estimation. Although coprime planar array (CPPA) has less mutual coupling than hourglass array (HA) and ladder array (LA), its ...
Ming Jian Ren +3 more
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