Results 11 to 20 of about 1,348,870 (188)

Joint Representation and Recognition for Ship-Radiated Noise Based on Multimodal Deep Learning

open access: yesJournal of Marine Science and Engineering, 2019
Ship recognition based on ship-radiated noise is one of the most important and challenging subjects in underwater acoustic signal processing. The recognition methods for ship-radiated noise recognition include traditional methods and deep learning (DL ...
Fei Yuan, Xiaoquan Ke, En Cheng
doaj   +4 more sources

Hierarchical Cosine Similarity Entropy for Feature Extraction of Ship-Radiated Noise [PDF]

open access: yesEntropy, 2018
The classification performance of passive sonar can be improved by extracting the features of ship-radiated noise. Traditional feature extraction methods neglect the nonlinear features in ship-radiated noise, such as entropy.
Zhe Chen   +3 more
doaj   +3 more sources

A New Ship-Radiated Noise Feature Extraction Technique Based on Variational Mode Decomposition and Fluctuation-Based Dispersion Entropy [PDF]

open access: yesEntropy, 2019
Sea environment complexity and underwater acoustic channels make it hard to extract features of ship-radiated noise signals. This paper presents a novel feature extraction method using the advantages of variational mode decomposition (VMD), fluctuation ...
Hong Yang, Ke Zhao, Guohui Li
doaj   +3 more sources

Resonance-Based Time-Frequency Manifold for Feature Extraction of Ship-Radiated Noise [PDF]

open access: yesSensors, 2018
In this paper, a novel time-frequency signature using resonance-based sparse signal decomposition (RSSD), phase space reconstruction (PSR), time-frequency distribution (TFD) and manifold learning is proposed for feature extraction of ship-radiated noise,
Jiaquan Yan   +4 more
doaj   +3 more sources

Feature Extraction of Ship-Radiated Noise Based on Regenerated Phase-Shifted Sinusoid-Assisted EMD, Mutual Information, and Differential Symbolic Entropy [PDF]

open access: yesEntropy, 2019
To improve the recognition accuracy of ship-radiated noise, a feature extraction method based on regenerated phase-shifted sinusoid-assisted empirical mode decomposition (RPSEMD), mutual information (MI), and differential symbolic entropy (DSE) is ...
Guohui Li, Zhichao Yang, Hong Yang
doaj   +3 more sources

A Novel Denoising Method for Ship-Radiated Noise

open access: yesJournal of Marine Science and Engineering, 2023
Ship-radiated noise (SN) is one of the most critical signals in the complex marine environment; however, it is inevitably contaminated by the marine environment’s noise as well as noise from other equipment.
Yuxing Li, Chunli Zhang, Yuhan Zhou
doaj   +3 more sources

Feature Extraction of Ship-Radiated Noise Based on Intrinsic Time-Scale Decomposition and a Statistical Complexity Measure [PDF]

open access: yesEntropy, 2019
Extracting effective features from ship-radiated noise is an important way to improve the detection and recognition performance of passive sonar. Complexity features of ship-radiated noise have attracted increasing amounts of attention.
Junxiong Wang, Zhe Chen
doaj   +3 more sources

Using Feature Extraction to Perform Equipment Health Monitoring on Ship-Radiated Noise

open access: yesAcoustics, 2023
The current state of the art in hydroacoustics research employs a variety of feature extraction techniques with the goal of accurately classifying a ship based on its radiated noise. These techniques are capable of accuracy in excess of 95%.
Nicholas Marasco   +2 more
doaj   +2 more sources

QiandaoEar22: a high-quality noise dataset for identifying specific ship from multiple underwater acoustic targets using ship-radiated noise [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing
Target identification of ship-radiated noise is a crucial area in underwater target recognition. However, there is currently a lack of multi-target ship datasets that accurately represent real-world underwater acoustic conditions.
Xiaoyang Du, Feng Hong
doaj   +3 more sources

Ship-Radiated Noise Separation in Underwater Acoustic Environments Using a Deep Time-Domain Network

open access: yesJournal of Marine Science and Engineering
Ship-radiated noise separation is critical in both military and economic domains. However, due to the complex underwater environments with multiple noise sources and reverberation, separating ship-radiated noise poses a significant challenge ...
Qunyi He   +3 more
doaj   +2 more sources

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