Results 11 to 20 of about 1,155,297 (296)
Modelling of ships as a source of underwater noise [PDF]
Ocean Science, 2018 Abstract. In this paper, a methodology is presented for modelling underwater noise emissions from ships based on realistic vessel activity in the Baltic Sea region. This paper combines the Wittekind noise source model with the Ship Traffic Emission Assessment Model (STEAM) in order to produce regular updates for underwater noise from ships.
Jalkanen, Jukka-Pekka +10 more
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Present status and challenges of underwater acoustic target recognition technology: A review
Frontiers in Physics, 2022 Future naval warfare has placed high demands on underwater targets’ target detection, target recognition, and opposition resistance, among other things. However, the ocean’s complex underwater acoustic environment and the evolving “stealth” technology of
Lei Zhufeng +3 more
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Entropy, 2021 The bearing-only tracking of an underwater uncooperative target can protect maritime territories and allows for the utilization of sea resources. Considering the influences of an unknown underwater environment, this work aimed to estimate 2-D locations ...
Xianghao Hou +4 more
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UNDERWATER IMAGE ENHANCEMENT BASED ON POLARIZATION IMAGING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The need of high-quality underwater imaging is obviously required in many underwater applications. For example, underwater archaeology, underwater ecological research, underwater object detection and tracking.
L. Shen, Y. Zhao
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Frontiers in Physics, 2023 The direction-of-arrival (DOA) tracking of underwater targets is an important research topic in sonar signal processing. Considering that the underwater DOA tracking is a typical multi-target problem under unknown underwater environment with missing ...
Boxuan Zhang +9 more
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, 2021 Underwater ambient noise is primarily a background noise which is a function of time, location, and depth. Background baseline of the noise in ocean is represented by ambient noise generated from the ocean surface due to wind and rain. This understanding pertained to ambient noise under various conditions will help in improving the signal-to-noise ...
Vijaya Baskar Veeriayan, Rajendran V.
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Comparison of underwater noise at the Chukchi Plateau under open-water and ice-covered conditions
, 2022 A comparison study on underwater noise at the Chukchi plateau with and without ice cover helps to understand the rapidly changing Arctic Ocean, especially in the context of global warming.
Wen, Hongtao +5 more
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Correlation between Underwater Noise and Sea Level at Ieodo Ocean Research Station
Journal of Marine Science and Engineering, 2020 To investigate the correlation between underwater noise and sea level, data collected at Ieodo Ocean Research Station (from 15 May to 27 August 2013) were analyzed. Temporal variations in the overall level of underwater noise were similar to those in sea
Seong Hyeon Kim +2 more
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An Advanced Prediction Model for Underwater Noise Emissions of Ships
, 2022 The aim of this paper is to investigate the relationship between design and operational ship parameters with respect to radiated underwater noise and to develop a semiempirical noise prediction model that includes the dominant noise contributors present ...
Holz, Florian +5 more
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Underwater broadband sound insulation with chiral spiral structures
AIP Advances, 2020 Low-frequency noise has been a long-standing issue in the context of a complex underwater environment. While theory related to low-frequency sound insulation in air has been developed, systematic research on underwater sound insulation has not yet been ...
Huilan Wu, Chengpeng Hao, Han Zhang
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