Results 21 to 30 of about 569 (176)
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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A Novel Improved Feature Extraction Technique for Ship-Radiated Noise Based on IITD and MDE [PDF]
Entropy, 2019 Zhaoxi Li, Yaan Li, Li Yaan
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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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Time-Domain Anti-Interference Method for Ship Radiated Noise Signal
EURASIP Journal on Advances in Signal Processing, 2022 Ship radiated noise signal is one of the important ways to detect and identify ships, and emission of interference noise to shield its own radiated noise signal is a common countermeasure.
Yichen Duan, Xiaohong Shen, Haiyan Wang
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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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An Underwater Acoustic Target Recognition Method Based on Spectrograms with Different Resolutions
Journal of Marine Science and Engineering, 2021 This paper focuses on the automatic target recognition (ATR) method based on ship-radiated noise and proposes an underwater acoustic target recognition (UATR) method based on ResNet.
Xinwei Luo +4 more
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Mimicking Ship-Radiated Noise With Chaos Signal for Covert Underwater Acoustic Communication
IEEE Access, 2020 With the increasingly fierce competition for marine resources, underwater acoustic communication as the main form of underwater communication, its security has received more and more attention. The traditional underwater acoustic communication technology
Shuhua Huang +5 more
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Underwater Sound Characteristics of a Ship with Controllable Pitch Propeller
Journal of Marine Science and Engineering, 2022 The time-dependent spectral characteristics of underwater sound radiated by an ocean vessel has complex dependencies on ship machinery, propeller dynamics, hydrodynamics of ship exhaust and motion, as well as ship board activities.
Chenyang Zhu +3 more
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