Predicting ocean pressure field with a physics-informed neural network

S Yoon, Y Park, P Gerstoft, W Seong - The Journal of the Acoustical …, 2024‏ - pubs.aip.org
Ocean sound pressure field prediction, based on partially measured pressure magnitudes at
different range-depths, is presented. Our proposed machine learning strategy employs a …

[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 …

Passive source localization based on multipath arrival angles with a vertical line array using sparse Bayesian learning

Y Qi, S Zhou, Z Luo, C Liu, S Du, J Dun… - The Journal of the …, 2023‏ - pubs.aip.org
In deep water, multipath time delays or frequency-domain interference periods of the
acoustic intensity combined with multipath arrival angles are typically used for source …

Bayesian optimization with Gaussian process surrogate model for source localization

WF Jenkins, P Gerstoft, Y Park - The Journal of the Acoustical Society …, 2023‏ - pubs.aip.org
Source localization with a geoacoustic model requires optimizing the model over a
parameter space of range and depth with the objective of matching a predicted sound field …

[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 …

DOA M-estimation using sparse Bayesian learning

CF Mecklenbräuker, P Gerstoft… - ICASSP 2022-2022 IEEE …, 2022‏ - ieeexplore.ieee.org
Recent investigations indicate that Sparse Bayesian Learning (SBL) is lacking in
robustness. We derive a robust and sparse Direction of Arrival (DOA) estimation framework …

[HTML][HTML] Graph-based sequential beamforming

Y Park, F Meyer, P Gerstoft - The Journal of the Acoustical Society of …, 2023‏ - pubs.aip.org
This paper presents a Bayesian estimation method for sequential direction finding. The
proposed method estimates the number of directions of arrivals (DOAs) and their DOAs …

Multi-source direction-of-arrival estimation using steered response power and group-sparse optimization

E Tengan, T Dietzen, F Elvander… - … /ACM Transactions on …, 2024‏ - ieeexplore.ieee.org
In this paper, a method is proposed for estimating the direction of arrival (DOA) of multiple
broadband sound sources. This is achieved by solving a group-sparse optimization …

Direction finding method via acoustic vector sensor array with fluctuating misorientation

W Wang, X Li, Z Liu, W Shi, H Li - Applied Acoustics, 2023‏ - Elsevier
In this paper, we consider the direction-of-arrival (DOA) estimation problem under fluctuating
misorientation via acoustic vector sensor array (AVSA). A covariance matrix focusing fitting …

Newtonized orthogonal matching pursuit-based compressive spherical beamforming in spherical harmonic domain

S Yin, Y Yang, Z Chu, Y Yang - Mechanical Systems and Signal Processing, 2022‏ - Elsevier
Compressive spherical beamforming (CSB) with spherical microphone arrays is a promising
approach for acoustic source identification due to its high spatial resolution and applicability …