Results 1 to 10 of about 8,321 (168)
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
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Hierarchical Cosine Similarity Entropy for Feature Extraction of Ship-Radiated Noise [PDF]
Entropy, 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
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Entropy, 2019 The presence of marine ambient noise makes it difficult to extract effective features from ship-radiated noise. Traditional feature extraction methods based on the Fourier transform or wavelets are limited in such a complex ocean environment.
Weijia Li, Xiaohong Shen, Yaan Li
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Entropy, 2019 Extracting useful features from ship-radiated noise can improve the performance of passive sonar. The entropy feature is an important supplement to existing technologies for ship classification.
Zhe Chen +5 more
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DWSTr: a hybrid framework for ship-radiated noise recognition
Frontiers in Marine ScienceThe critical nature of passive ship-radiated noise recognition for military and economic security is well-established, yet its advancement faces significant obstacles due to the complex marine environment.
Yan Wang +7 more
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Alexandria Engineering Journal, 2022 The processing of ship radiated noise is a research hotspot in the field of military and marine resource exploration. Frequency characteristic is an important characteristic of ship radiated noise.
Guohui Li, Yongming Hou, Hong Yang
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Bispectrum of ship-radiated noise [PDF]
The Journal of the Acoustical Society of America, 1989 The bispectrum of ship-radiated noise is estimated. The noise was received on a towed array being towed by the same ship that served as the noise source. The array was beamformed such that the forward endfire beam pointed toward the towing platform and the broadside beam sampled the environment without the radiated noise of the ship.
Melvin J. Hinich +2 more
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IEEE Access, 2021 Underwater acoustic target recognition is one of the main functions of the SONAR systems. In this paper, a target recognition method based on combined features with automatic coding and reconstruction is proposed to classify ship radiated noise signals ...
Xinwei Luo, Yulin Feng, Minghong Zhang
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A New Denoising Method for Underwater Acoustic Signal
IEEE Access, 2020 In recent years, the rapid development of marine science has put forward higher and higher requirements for the processing of ship-radiated noise signal.
Hong Yang, Lulu Li, Guohui Li
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Defence Technology, 2022 Refined composite multi-scale dispersion entropy (RCMDE), as a new and effective nonlinear dynamic method, has been applied in the field of medical diagnosis and fault diagnosis.
Yu-xing Li +4 more
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