A deep learning framework for robust DOA estimation using spherical harmonic decomposition

V Varanasi, H Gupta, RM Hegde - IEEE/ACM Transactions on …, 2020 - ieeexplore.ieee.org
Spherical harmonic decomposition facilitates decomposing the sound pressure at different
microphones into independent functions of frequency, azimuth and elevation of the source …

Acoustic source localization in the circular harmonic domain using deep learning architecture

K SongGong, W Wang, H Chen - IEEE/ACM Transactions on …, 2022 - ieeexplore.ieee.org
The problem of direction of arrival (DOA) estimation with a circular microphone array has
been addressed with classical source localization methods, such as the model-based …

Underwater acoustic localization of the black box based on generalized second-order time difference of arrival (GSTDOA)

S Sun, S Qin, Y Hao, G Zhang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The black box plays an important role in transportation security, and the underwater acoustic
localization (UWAL) methods are the most effective way to find the black box sunken …

Source Localization of EM Waves in the Near‐Field of Spherical Antenna Array in the Presence of Unknown Mutual Coupling

OJ Famoriji, T Shongwe - Wireless Communications and …, 2021 - Wiley Online Library
To obtain an antenna array with isotropic radiation, spherical antenna array (SAA) is the
right array configuration. The challenges of locating signals transmitted within the proximity …

High-accuracy DOA estimation algorithm at low SNR through exploiting a supervised index

K Xu, M Xing, R Zhang, E Hanyu, M Sha… - … on Aerospace and …, 2022 - ieeexplore.ieee.org
Performance of direction of arrival (DOA) estimation is one of the most important issues in
array signal processing. Subspace-based algorithms provide a good compromise between …

Subspace-based near-field source localization in unknown spatially nonuniform noise environment

W Zuo, J Xin, N Zheng, H Ohmori… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this paper, we investigate the problem of estimating the directions-of-arrival (DOAs) and
ranges of multiple narrowband near-field sources in unknown spatially nonuniform noise …

High-precision underwater acoustic localization of the black box utilizing an autonomous underwater vehicle based on the improved artificial potential field

S Sun, H Guo, G Wan, C Dong… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Underwater acoustic localization (UWAL) of the black box for a sunken airplane utilizing an
autonomous underwater vehicle (AUV) is a useful technique in ensuring traffic safety …

High-precision underwater acoustical localization of the black box based on an improved TDOA algorithm

S Sun, C Zhao, C Zheng, C Zhao… - IEEE Geoscience and …, 2020 - ieeexplore.ieee.org
Underwater acoustic localization (UWAL) of the black box is a significant technique for
transportation safety. The traditional UWAL algorithm based on the time difference of arrival …

Learning based method for near field acoustic range estimation in spherical harmonics domain using intensity vectors

P Dwivedi, G Routray, RM Hegde - Pattern Recognition Letters, 2023 - Elsevier
Near-field acoustic range estimation is considered one of the least explored research
problems in digital signal processing under noise and reverberant conditions. This letter …

Octant Spherical Harmonics Features for Source Localization using Artificial Intelligence based on Unified Learning Framework

P Dwivedi, G Routray, RM Hegde - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Recent advancements in artificial intelligence (AI) have shown potential solutions to acoustic
source localization in three-dimensional space. This paper proposes a new low-complex AI …