Results 51 to 60 of about 9,271 (162)

IARA: An Underwater Acoustic Database

IEEE Access
Recent advancements in artificial intelligence have been driven by the availability of diverse and well-structured public databases; however public databases for passive sonar classification remain scarce. To address this gap, this paper presents a new public underwater acoustic labeled database collected during the Santos Basin Soundscape Monitoring ...
Fabio O. B. da Silva, Júlio de Castro Vargas Fernandes, William Soares-Filho, João Baptista de Oliveira e Souza Filho, Ângela Spengler, Natanael Nunes de Moura Junior   +5 more
openaire   +2 more sources

Underwater Network Time Synchronization Method Based on Probabilistic Graphical Models

Journal of Marine Science and Engineering
In underwater clustering and benchmark networks, nodes need to reduce the rate and energy consumption of acoustic communication while ensuring synchronization accuracy.
Yujie Ouyang, Yunfeng Han, Zeyu Wang, Yifei He   +3 more
doaj   +1 more source

Erratum to: Object representation for multi-beam sonar image using local higher-order statistics

EURASIP Journal on Advances in Signal Processing, 2017
Haisen Li, Jue Gao, Weidong Du, Tian Zhou, Chao Xu, Baowei Chen   +5 more
doaj   +1 more source

An Underwater Acoustic Communication Signal Modulation-Style Recognition Algorithm Based on Dual-Feature Fusion and ResNet–Transformer Dual-Model Fusion

Applied Sciences
Traditional underwater acoustic reconnaissance technologies are limited in directly detecting underwater acoustic communication signals. This paper proposes a dual-feature ResNet–Transformer model with two innovative breakthroughs: (1) A dual-modal ...
Fanyu Zhou, Haoran Wu, Zhibin Yue, Han Li   +3 more
doaj   +1 more source

Three-Dimensional Non-Uniform Sampled Data Visualization from Multibeam Echosounder Systems for Underwater Imaging and Environmental Monitoring

Remote Sensing
This paper proposes a method for visualizing three-dimensional non-uniformly sampled data from multibeam echosounder systems (MBESs), aimed at addressing the requirements of monitoring complex and dynamic underwater flow fields.
Wenjing Cao, Shiliang Fang, Chuanqi Zhu, Miao Feng, Yifan Zhou, Hongli Cao   +5 more
doaj   +1 more source

Internal sound field reconstruction method based on optimal arrangement of sound monitoring points near the cabin inner surface

AIP Advances
Aiming at the problem of sound field online monitoring and reconstruction inside the cabin, an inner acoustic field reconstruction method based on the optimal arrangement of sound monitoring points near the surface in the cabin is proposed.
Shengguo Shi, Qiang Guo, Huihui He, Xinyu Wang   +3 more
doaj   +1 more source

Predictions of the Effect of Non-Homogeneous Ocean Bubbles on Sound Propagation

Journal of Marine Science and Engineering
In the ocean, bubbles rarely appear alone and are often not evenly distributed, which makes it complicated to predict the effect of ocean bubbles on sound propagation. To solve this problem, researchers have tried to use approximations such as equivalent
Yuezhu Cheng, Jie Shi, Yuan Cao, Haoyang Zhang   +3 more
doaj   +1 more source

A Low-Complexity Versatile Beamforming Method for Multiple Parametric Arrays

Acoustics
The application of multiple parametric arays (MPAs) has been increasingly prominent in recent years due to the high directivity of parametric arrays. However, existing beamforming methods for MPAs are limited to special scenarios, such as narrow-edged ...
Haokang Shi, Jie Shi, Bo Fan, Haoyang Zhang   +3 more
doaj   +1 more source

Underwater Acoustics [PDF]

Nature, 1971
openaire   +2 more sources

Underwater Acoustics [PDF]

Nature, 1966
openaire   +1 more source