Results 21 to 30 of about 656 (191)

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, Daming Wang, Bin Ba, Weijia Cui, Yankui Zhang   +4 more
doaj   +3 more sources

Low-Complexity DOA Estimation Method Based on Joined Coprime Array

Journal of Telecommunications and Information Technology
In this article, the elimination of ambiguity of a joined coprime array has been examined, with a focus on such of its properties as large aperture size and complete degree of freedom (DOF).
Fatimah Salman, Bayan Sabbar
doaj   +2 more sources

L-shaped coprime array structures for DOA estimation [PDF]

Multidimensional Systems and Signal Processing, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elbir, Ahmet Musab
openaire   +2 more sources

A Hole-free Shifted Coprime Array for DOA Estimation

Journal of Telecommunications and Information Technology
Coprime arrays have recently become a popular trend in estimating the direction of arrival in array signal processing, as they increase the degree of freedom (DOF).
Fatimah Abdulnabi Salman, Bayan Mahdi Sabbar   +1 more
doaj   +3 more sources

Enhanced Array Synthesis and DOA Estimation Exploiting UAV Array with Coprime Frequencies

Drones
The challenge of achieving high-precision direction-of-arrival (DOA) estimation with enhanced degrees of freedom (DOFs) under a limited number of physical array elements remains a critical issue in array signal processing.
Long Zhang, Weijia Cui, Nae Zheng, Song Chen, Yuxi Du   +4 more
doaj   +2 more sources

Off-grid hydroacoustic signal orientation estimation based on interpolation and subspace fitting in coprime arrays. [PDF]

PLoS ONE
This 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, Guangzhi Tan, Qiang Meng, Yanling Ran, Mao Lu   +4 more
doaj   +2 more sources

Computational Ghost Imaging Based on Light Source Formed by Coprime Array. [PDF]

Sensors (Basel), 2020
In computational ghost imaging, a spatial light modulator (SLM) can be used to modulate the light field. The relative locations and the number of light point pixels on an SLM affect the imaging quality.
Zhan Y, Liu J, Wang Z, Yu Q.
europepmc   +2 more sources

Two-Dimensional Direction-of-Arrival Fast Estimation of Multiple Signals with Matrix Completion Theory in Coprime Planar Array

Sensors, 2018
In estimating the two-dimensional (2D) direction-of-arrival (DOA) using a coprime planar array, the main issues are the high complexity of spectral peak search and the limited degree of freedom imposed by the number of sensors.
Haiyun Xu, Yankui Zhang, Bin Ba, Daming Wang, Xiangzhi Li   +4 more
doaj   +2 more sources

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, Panos P. Markopoulos   +1 more
openaire   +2 more sources

Direction of Arrival Estimation Algorithm Based on Coprime Array [PDF]

Hangkong bingqi, 2023
The coprime array has attracted extensive attention because of its flexible antenna placement form and larger array aperture compared with the uniform array, which can obtain higher degrees of freedom and reduce the cost of hardware resources.
Liu Jianing, Si Weijian
doaj   +1 more source