UAV communications with millimeter-wave beamforming: Potentials, scenarios, and challenges

Z Xiao, L Zhu, XG Xia - China Communications, 2020 - ieeexplore.ieee.org
Unmanned aerial vehicle (UAV) has been widely used in many fields and is arousing global
attention. As the resolution of the equipped sensors in the UAV becomes higher and the …

Augmented covariance matrix reconstruction for DOA estimation using difference coarray

Z Zheng, Y Huang, WQ Wang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
As is well known, nonuniform linear arrays have significant advantages in array aperture
and degrees of freedom over uniform linear arrays. Using their difference coarrays …

ULA fitting for MIMO radar

W Shi, X Liu, Y Li - IEEE Communications Letters, 2022 - ieeexplore.ieee.org
Uniform linear array (ULA) fitting (UF) principle is a newly proposed sparse array (SA)
design scheme that aims to design SAs using cascaded ULAs, based on which a number of …

Joint DoA-range estimation using space-frequency virtual difference coarray

Z Mao, S Liu, YD Zhang, L Han… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this paper, we address the problem of joint direction-of-arrival (DoA) and range estimation
using frequency diverse coprime array (FDCA). By incorporating the coprime array structure …

Padded coprime arrays for improved DOA estimation: Exploiting hole representation and filling strategies

W Zheng, X Zhang, Y Wang, J Shen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
As a generalized coprime array structure, the coprime array with displaced subarrays
(CADiS) allows a large minimum inter-element spacing by introducing a specific …

Direction-of-arrival estimation of coherent signals via coprime array interpolation

Z Zheng, Y Huang, WQ Wang… - IEEE Signal Processing …, 2020 - ieeexplore.ieee.org
In this letter, we devise an efficient approach for estimating the directions-of-arrival (DOAs) of
coherent signals using coprime arrays. Specifically, we firstly derive an augmented uniform …

Symmetric displaced coprime array configurations for mixed near-and far-field source localization

Z Zheng, M Fu, WQ Wang, HC So - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Conventionally, mixed near-field (NF) and far-field (FF) source localization is performed
using a symmetric uniform linear array (ULA). Recently, two symmetric nonuniform linear …

Localization of mixed near-field and far-field sources using symmetric double-nested arrays

Z Zheng, M Fu, WQ Wang, S Zhang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Nested arrays have recently attracted a growing concern owing to their ability of achieving
extended aperture and enhanced degrees of freedom (DOFs) compared to conventional …

ULA fitting for sparse array design

W Shi, SA Vorobyov, Y Li - IEEE Transactions on Signal …, 2021 - ieeexplore.ieee.org
Existing sparse array (SA) geometries, such as coprime and nested arrays, can be regarded
as a concatenation of two uniform linear arrays (ULAs). Such arrays lead to a significant …

Enhanced DOA estimation exploiting multi-frequency sparse array

S Zhang, A Ahmed, YD Zhang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper, we develop a general framework of multi-frequency sparse array to estimate
the direction-of-arrival (DOA) of a significantly higher number of targets than the number of …