International Journal

2025

Entropy-based analysis of influential factors for underwater acoustic target recognition in passive sonar data

J Bae, M Kang, Y Choo

Ocean Engineering 342, 122908

Time-Domain Off-Grid Sparse Bayesian Learning for High-Resolution Time-Delay Estimation

H Yang, Y Choo

IEEE Access

Adaptive Enhancement of an Active Sonar Classifier Using Mode-Connectivity-Based Fine-Tuning Under Data Set Shifts

G Kim, Y Choo

IEEE Journal of Oceanic Engineering

Model-Guided Deep Learning for Line Segment Detection in Time–Frequency Spectrograms of an Ocean Waveguide

J Choi, Y Choo, G Kim, W Hong, K Lee

IEEE Journal of Oceanic Engineering

Effective data augmentation for active sonar classification using attention based complementary learning with uncertainty measure

Y Hwang, G Kim, W Hong, Y Choo

IEEE Access

2024

System-Informed Neural Network for Frequency Detection

S Ko, M Shin, G Kim, Y Choo

IEEE Signal Processing Letters

Enhancing generalization of active sonar classification using semisupervised anomaly detection with multisphere for normal data

G Kim, Y Choo

IEEE Journal of Oceanic Engineering

Attention-based Complementary Learning for Active Target Classification with Limited Sonar Data

Y Hwang, G Kim, S Shin, W Hong, Y Choo

IEEE Access

2023

Reformulation of frequency-difference matched-field processor for high-frequency known-source localization

M Park, Y Choo, J Choi, K Lee

The Journal of the Acoustical Society of America 154 (2), 948-967

3D Off-Grid Localization for Adjacent Cavitation Noise Sources Using Bayesian Inference

M Park, SA Memon, G Kim, Y Choo

Sensors 23 (5), 2628

Ray-based analysis of subcritical scattering from buried target

YS Choo, G Choi, K Lee, SH Byun, Y Choo

Journal of Marine Science and Engineering 11 (2), 307

2022

Bi-sphere anomaly detection with learnable centroid for active sonar classification

G Kim, Y Choo

IEEE Access 10, 128590-128603

Passive sonar target identification using multiple-measurement sparse Bayesian learning

M Shin, W Hong, K Lee, Y Choo

Sensors 22 (21), 8511

Active target classification using a shallow neural network with dimension reduction

SH Byun, Y Choo

The Journal of the Acoustical Society of America 152 (4_Supplement), A62-A63

Three-dimensional off-grid localization of incipient tip vortex cavitation using Bayesian inference

M Park, Y Choo

Ocean Engineering 261, 112124

Design of generalized sinusoidal frequency modulated pulse train waveform to improve tracking performance of high duty cycle sonar systems

G Kim, S Lee, K Yoon, C Ryu, M Park, Y Choo

IEEE Access 10, 106543-106555

Estimation of Acoustic Channel Impulse Response at Low Frequencies Using Sparse Bayesian Learning for Nonuniform Noise Power

Y Choo, H Yang

IEEE Access 10, 99011-99024

Active underwater target detection using a shallow neural network with spectrogram-based temporal variation features

Y Choo, K Lee, W Hong, SH Byun, H Yang

IEEE Journal of Oceanic Engineering 49 (1), 279-293

Underwater acoustic signal detection using calibrated hidden Markov model with multiple measurements

H You, SH Byun, Y Choo

Sensors 22 (14), 5088

Broadband off-grid DOA estimation using block sparse Bayesian learning for nonuniform noise variance

Y Choo, H Yang

IEEE Journal of Oceanic Engineering 47 (4), 1024-1040

2021

Near-field target strength of finite cylindrical shell in water

K Lee, YS Choo, G Choi, Y Choo, SH Byun, K Kim

Applied Acoustics 182, 108233

Frequency analysis of acoustic data using multiple-measurement sparse bayesian learning

M Shin, W Hong, K Lee, Y Choo

Sensors 21 (17), 5827

Detection of direction-of-arrival in time domain using compressive time delay estimation with single and multiple measurements

Y Choo, Y Park, W Seong

Sensors 20 (18), 5431

2020

Underwater acoustic research trends with machine learning: general background

H Yang, K Lee, Y Choo, K Kim

Journal of Ocean Engineering and Technology 34 (2), 147-154

Underwater acoustic research trends with machine learning: Active SONAR applications

H Yang, SH Byun, K Lee, Y Choo, K Kim

Journal of Ocean Engineering and Technology 34 (4), 277-284

Underwater acoustic research trends with machine learning: Passive SONAR applications

H Yang, K Lee, Y Choo, K Kim

Journal of Ocean Engineering and Technology 34 (3), 227-236

Underwater acoustic research trends with machine learning: Ocean parameter inversion applications

H Yang, K Lee, Y Choo, K Kim

Journal of Ocean Engineering and Technology 34 (5), 371-376

~ 2019

Reverberation level modeling via coupled mode approach in shallow-water sound channel with internal solitary waves

J Park, H Yang, W Seong, Y Choo

Journal of Theoretical and Computational Acoustics 27 (04), 1850045

Acoustic classification of surface and underwater vessels in the ocean using supervised machine learning

J Choi, Y Choo, K Lee

Sensors 19 (16), 3492

Broadband acoustic signal variability induced by internal solitary waves and semidiurnal internal tides in the northeastern East China Sea

J Park, W Seong, H Yang, SH Nam, SW Lee, Y Choo

The Journal of the Acoustical Society of America 146 (2), 1110-1123

Modeling of Long-Range Reverberation Signal for Rough Bottom Consisting of Polygon Facets

Y Choo, W Seong

Journal of Theoretical and Computational Acoustics 26 (04), 1850041

Multiple snapshot grid free compressive beamforming

Y Park, Y Choo, W Seong

The Journal of the Acoustical Society of America 143 (6), 3849-3859

Compressive sound speed profile inversion using beamforming results

Y Choo, W Seong

Remote sensing 10 (5), 704

Stealth path planning for a high speed torpedo-shaped autonomous underwater vehicle to approach a target ship

J Kim, S Kim, Y Choo

Cyber-Physical Systems 4 (1), 1-16

Compressive time delay estimation off the grid

Y Park, W Seong, Y Choo

The Journal of the Acoustical Society of America 141 (6), EL585-EL591

Time-domain Helmholtz-Kirchhoff integral for surface scattering in a refractive medium

Y Choo, HC Song, W Seong

The Journal of the Acoustical Society of America 141 (3), EL267-EL273

Compressive time-domain beamforming

Y Choo, Y Park, W Seong

2017 IEEE Underwater Technology (UT), 1-2

Compressive spherical beamforming for localization of incipient tip vortex cavitation

Y Choo, W Seong

The Journal of the Acoustical Society of America 140 (6), 4085-4090

Numerical study of three-dimensional sound reflection from corrugated surface waves

Y Choo, HC Song, W Seong

The Journal of the Acoustical Society of America 140 (4), 2290-2296

Off the grid time delay estimation for sparse translation-invariant signals

Y Park, W Seong, Y Choo

2016 4th International Workshop on Compressed Sensing Theory and its …

Efficient algorithm for long-range monostatic reverberation in shallow water using geometrical ray-bundle

Y Choo, W Seong, K Lee

Journal of Computational Acoustics 24 (02), 1650002

Comment on “Reconstructing surface wave profiles from reflected acoustic pulses”[J. Acoust. Soc. Am. 133 (5), 2597–2611 (2013)]

Y Choo, HC Song

The Journal of the Acoustical Society of America 139 (5), 2399-2402

Localization of incipient tip vortex cavitation using ray based matched field inversion method

D Kim, W Seong, Y Choo, J Lee

Journal of Sound and Vibration 354, 34-46

Emergence of striation patterns in acoustic signals reflected from dynamic surface waves

Y Choo, W Seong, H Song

The Journal of the Acoustical Society of America 136 (3), 1046-1053

Experimental study of scale effects on the scaling law for tip vortex cavitation noise

J Park, C Park, Y Choo, W Seong

Fluids Engineering Division Summer Meeting 46261, V002T06A006

4

Modeling and analysis of monostatic seafloor reverberation from bottom consisting of two slopes

Y Choo, W Seong, W Hong

Journal of Computational Acoustics 22 (02), 1450005

Characteristics of Acoustic Channel with Time-evolving Regular Surface

Y Choo, W Seong, K Lee, W Hong

International Journal of Offshore and Polar Engineering 24 (02), 129-134

Analysis of acoustic channels with a time-evolving sinusoidal surface

Y Choo, W Seong

Applied acoustics 78, 28-32

Range-dependence of acoustic channel with traveling sinusoidal surface wave

Y Choo, W Seong, K Lee

The Journal of the Acoustical Society of America 135 (4), EL206-EL211

Modeling and analysis of an acoustic channel with a moving surface

Y Choo, W Seong

Journal of Computational Acoustics 21 (04), 1350015

Geometrical ray-bundle reverberation modeling

K Lee, Y Chu, W Seong

Journal of Computational Acoustics 21 (03), 1350011

Analysis of a time-varying acoustic channel caused by a moving surface

Y Choo, W Seong

Proceedings of IEEE UComms 2012, 12-14

Characteristics of surface reflective path in acoustic channel with sinusoidal moving surface

Y Choo, W Seong

OCEANS'11 MTS/IEEE KONA, 1-5