Results 31 to 40 of about 1,335,366 (185)
Journal of Marine Science and EngineeringTo 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 +3 more
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Underwater Acoustic Nonlinear Blind Ship Noise Separation Using Recurrent Attention Neural Networks
Remote SensingShip-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 +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. The challenges include natural sound interference and signal distortion, complicating the extraction of key acoustic features and ship type ...
Yuan An
exaly +3 more sources
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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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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