Maximum likelihood-based gridless doa estimation using structured covariance matrix recovery and sbl with grid refinement

RR Pote, BD Rao - IEEE Transactions on Signal Processing, 2023 - ieeexplore.ieee.org
We consider the parametric measurement model employed in applications such as line
spectral or direction-of-arrival estimation with the goal to estimate the underlying parameter …

Block-sparse signal recovery via general total variation regularized sparse Bayesian learning

A Sant, M Leinonen, BD Rao - IEEE Transactions on Signal …, 2022 - ieeexplore.ieee.org
One of the main challenges in block-sparse signal recovery, as encountered in, eg, multi-
antenna mmWave channel models, is block-patterned estimation without knowledge of …

A robust and statistically efficient maximum-likelihood method for DOA estimation using sparse linear arrays

Z Yang, X Chen, X Wu - IEEE Transactions on Aerospace and …, 2023 - ieeexplore.ieee.org
The recent trend of research on direction-of-arrival estimation is to localize more
uncorrelated sources than sensors by using a proper sparse linear array (SLA) at the cost of …

[HTML][HTML] Gridless sparse covariance-based beamforming via alternating projections including co-prime arrays

Y Park, P Gerstoft - The Journal of the Acoustical Society of America, 2022 - pubs.aip.org
This paper presents gridless sparse processing for direction-of-arrival (DOA) estimation. The
method solves a gridless version of sparse covariance-based estimation using alternating …

Frequency-domain convolutive bounded component analysis algorithm for the blind separation of dependent sources

X Luo, Z Zhang, T Gong - IEEE Transactions on Instrumentation …, 2023 - ieeexplore.ieee.org
Aiming at the problem of dependent source separation in complex mechanical systems, the
highly universal frequency-domain convolutive bounded component analysis (FDCBCA) …

Robust and sparse m-estimation of doa

CF Mecklenbräuker, P Gerstoft, E Ollila… - arXiv preprint arXiv …, 2023 - arxiv.org
A robust and sparse Direction of Arrival (DOA) estimator is derived for array data that follows
a Complex Elliptically Symmetric (CES) distribution with zero-mean and finite second-order …

Sparse signal recovery and source localization via covariance learning

E Ollila - arXiv preprint arXiv:2401.13975, 2024 - arxiv.org
In the Multiple Measurements Vector (MMV) model, measurement vectors are connected to
unknown, jointly sparse signal vectors through a linear regression model employing a single …

[HTML][HTML] Robust and sparse M-estimation of DOA

CF Mecklenbräuker, P Gerstoft, E Ollila, Y Park - Signal Processing, 2024 - Elsevier
A robust and sparse Direction of Arrival (DOA) estimator is derived for array data that follows
a Complex Elliptically Symmetric (CES) distribution with zero-mean and finite second-order …

[HTML][HTML] Empirical Bayesian localization of event-related time-frequency neural activity dynamics

C Cai, L Hinkley, Y Gao, A Hashemi, S Haufe… - NeuroImage, 2022 - Elsevier
Accurate reconstruction of the spatio-temporal dynamics of event-related cortical oscillations
across human brain regions is an important problem in functional brain imaging and human …

General total variation regularized sparse Bayesian learning for robust block-sparse signal recovery

A Sant, M Leinonen, BD Rao - ICASSP 2021-2021 IEEE …, 2021 - ieeexplore.ieee.org
Block-sparse signal recovery without knowledge of block sizes and boundaries, such as
those encountered in multi-antenna mmWave channel models, is a hard problem for …