DOA and polarization estimation for non-circular signals in 3-D millimeter wave polarized massive MIMO systems

L Wan, K Liu, YC Liang, T Zhu - IEEE Transactions on Wireless …, 2021 - ieeexplore.ieee.org
In this article, a multiple signal classification (MUSIC) based algorithm is proposed for two-
dimensional (2-D) direction-of-arrival (DOA) and polarization estimation of non-circular …

Sparse array extension for non-circular signals with subspace and compressive sensing based DOA estimation methods

J Cai, W Liu, R Zong, B Wu - Signal Processing, 2018 - Elsevier
The virtual array generation process based on typical sparse arrays is studied for a mixture
of circular and non-circular impinging signals. It consists of two sub-arrays: one is the …

Off-grid DOA estimation for noncircular signals via block sparse representation using extended transformed nested array

J Yuan, G Zhang, H Leung, S Ma - IEEE Signal Processing …, 2023 - ieeexplore.ieee.org
An off-grid direction-of-arrival (DOA) estimation method based on block sparse
representation is proposed to localize the strictly noncircular (NC) sources utilizing an …

Doa estimation of noncircular signals under impulsive noise using a novel empirical characteristic function-based music

M Asghari, M Zareinejad, SM Rezaei… - Circuits, Systems, and …, 2023 - Springer
Noncircular (NC) signals constitute a significant class of signals that are frequently
employed in communication systems. In the presence of extremely impulsive noises …

Sparse Bayesian learning for off-grid DOA estimation with Gaussian mixture priors when both circular and non-circular sources coexist

R Zheng, X Xu, Z Ye, TH Al Mahmud, J Dai, K Shabir - Signal Processing, 2019 - Elsevier
In this paper, the problem of off-grid direction of arrival (DOA) estimation for the more
general case of coexisting circular and non-circular signals is investigated from the …

Unitary matrix completion-based DOA estimation of noncircular signals in nonuniform noise

X Wang, Y Zhu, M Huang, J Wang, L Wan, G Bi - IEEE Access, 2019 - ieeexplore.ieee.org
In this paper, a novel direction-of-arrival (DOA) estimation algorithm is proposed for
noncircular signals with nonuniform noise by using the unitary matrix completion (UMC) …

The fractional lower order moments based ESPRIT algorithm for noncircular signals in impulsive noise environments

J Zhang, T Qiu - Wireless Personal Communications, 2017 - Springer
By applying the covariation statistics, this paper generalizes the non-circularity to the
scenario of complex isotropic symmetric alpha-stable (S α SS α S) signals. The matrices …

Gridless super-resolution direction finding for strictly non-circular sources based on atomic norm minimization

J Steinwandt, F Roemer, C Steffens… - 2016 50th Asilomar …, 2016 - ieeexplore.ieee.org
The recently developed super-resolution framework by Candes enables direction-of-arrival
(DOA) estimation from a sparse spatial power spectrum in the continuous domain with …

Sparsity-aware direction finding for strictly non-circular sources based on rank minimization

J Steinwandt, C Steffens, M Pesavento… - 2016 IEEE Sensor …, 2016 - ieeexplore.ieee.org
Exploiting the statistical properties of strictly non-circular (NC) signals in direction of arrival
(DOA) estimation has long been an active area of research due to its associated …

Stochastic Cramer-Rao bound for DOA estimation with a mixture of circular and noncircular signals

J Cai, Y Liang, W Liu, YY Dong - IEEE Access, 2020 - ieeexplore.ieee.org
The Cramer-Rao bound (CRB) offers insights into the inherent performance benchmark of
any unbiased estimator developed for a specific parametric model, which is an important …