Results 21 to 30 of about 1,348,870 (188)

Research on Feature Extraction of Ship-Radiated Noise Based on Multiscale Fuzzy Dispersion Entropy

Journal of Marine Science and Engineering, 2023
In recent years, fuzzy dispersion entropy (FDE) has been proposed and used in the feature extraction of various types of signals. However, FDE can only analyze a signal from a single time scale during practical application and ignores some important ...
Yuxing Li, Yilan Lou, Lili Liang, Shuai Zhang   +3 more
doaj   +2 more sources

Ship Radiated Noise Recognition Using Resonance-Based Sparse Signal Decomposition [PDF]

Shock and Vibration, 2017
Under the complex oceanic environment, robust and effective feature extraction is the key issue of ship radiated noise recognition. Since traditional feature extraction methods are susceptible to the inevitable environmental noise, the type of vessels ...
Jiaquan Yan, Haixin Sun, En Cheng, Xiaoyan Kuai, Xiaoliang Zhang   +4 more
doaj   +2 more sources

A Survey on Machine Learning in Ship Radiated Noise

Ocean Engineering
The utilization of machine learning in analyzing ship radiated noise (SR-N) is undergoing rapid evolution. Because the omnipresent background noise strongly depends on the highly variable environment, the application of such techniques poses challenges. Furthermore, publicly available labeled datasets are scarce.
RD van der Mei, Sandjai Bhulai
exaly   +4 more sources

Data augmentation and deep neural network classification based on ship radiated noise

Frontiers in Marine Science, 2023
IntroductionVarious types of ships sail at sea, and identifying maritime ship types through shipradiated noise is one of the tasks of ocean observation.
Zhuofan Xie, Zhuofan Xie, Zhuofan Xie, Rongbin Lin, Rongbin Lin, Rongbin Lin, Rongbin Lin, Lingzhe Wang, Anmin Zhang, Jiaqing Lin, Xiaoda Tang   +10 more
doaj   +3 more sources

Feature Extraction of Ship-Radiated Noise Based on Permutation Entropy of the Intrinsic Mode Function with the Highest Energy

Entropy, 2016
In order to solve the problem of feature extraction of underwater acoustic signals in complex ocean environment, a new method for feature extraction from ship-radiated noise is presented based on empirical mode decomposition theory and permutation ...
Yu-Xing Li, Ya-An Li, Zhe Chen, Xiao Chen   +3 more
doaj   +2 more sources

Analysis of the Underwater Radiated Noise Generated by Hull Vibrations of the Ships

Sensors, 2023
Shipping traffic is recognised as the main man-noise source of the anthropogenic noise generated in the marine environment. The underwater acoustic pollution is increased due to the increment of the human activity at seas supposing a threat for marine ...
Rodrigo F. Javier, Ramis Jaime, Poveda Pedro, Carbajo Jesus, Segovia Enrique   +4 more
doaj   +4 more sources

A Novel Feature Extraction Method for Ship-Radiated Noise Based on Variational Mode Decomposition and Multi-Scale Permutation Entropy

Entropy, 2017
In view of the problem that the features of ship-radiated noise are difficult to extract and inaccurate, a novel method based on variational mode decomposition (VMD), multi-scale permutation entropy (MPE) and a support vector machine (SVM) is proposed to
Yuxing Li, Yaan Li, Xiao Chen, Jing Yu
doaj   +2 more sources

Noise-Robust DEMON Spectrum Extraction for Ship-Radiated Noise via Adaptive Decomposition and Sparse Reconstruction

Journal of Marine Science and Engineering
To improve the quality of detection of envelope modulation on noise (DEMON) spectra extracted from ship-radiated noise under noisy conditions, a noise-robust DEMON spectrum extraction method incorporating adaptive decomposition and sparse reconstruction ...
Zikai Wang, Juan Hui, Weiyu Tan, Wenwu Wang   +3 more
doaj   +2 more sources

Underwater Acoustic Nonlinear Blind Ship Noise Separation Using Recurrent Attention Neural Networks

Remote Sensing
Ship-radiated noise is the main basis for ship detection in underwater acoustic environments. Due to the increasing human activity in the ocean, the captured ship noise is usually mixed with or covered by other signals or noise. On the other hand, due to
Ruiping Song, Xiao Feng, Junfeng Wang, Haixin Sun, Mingzhang Zhou, Hamada Esmaiel   +5 more
doaj   +2 more sources

A Novel Improved Feature Extraction Technique for Ship-Radiated Noise Based on IITD and MDE [PDF]

Entropy (Basel), 2019
Ship-radiated noise signal has a lot of nonlinear, non-Gaussian, and nonstationary information characteristics, which can reflect the important signs of ship performance.
Li Z, Li Y, Zhang K, Guo J.
europepmc   +2 more sources