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OCEANS 2019 - Marseille, 2019
Underwater Acoustic channel is full of various impulsive sources due to which the underwater noise does not follow the standard Gaussian Probability Distribution Function (pdf). This makes the Underwater scenario a little more complicated and leads to performance issues in various fields of underwater applications, e.g. communication, signal processing,
Ayushi Agrawal +2 more
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Underwater Acoustic channel is full of various impulsive sources due to which the underwater noise does not follow the standard Gaussian Probability Distribution Function (pdf). This makes the Underwater scenario a little more complicated and leads to performance issues in various fields of underwater applications, e.g. communication, signal processing,
Ayushi Agrawal +2 more
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Theoretical and Computational Fluid Dynamics, 1998
We investigate the effect of the interior mechanical structure of the streamers on the flow noise. Simple algebraic forms are derived for the comparative performance of liquid and viscoelastic-filled streamers. The introduction of porous foam into liquid streamers is found to be a particularly effective way of attenuating low wave-number disturbances ...
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We investigate the effect of the interior mechanical structure of the streamers on the flow noise. Simple algebraic forms are derived for the comparative performance of liquid and viscoelastic-filled streamers. The introduction of porous foam into liquid streamers is found to be a particularly effective way of attenuating low wave-number disturbances ...
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2011
The issue of the environmental impact of shipping activities is treated in this work from the specific viewpoint of underwater noise emissions from the vessels. There has been recently a rising concern about the negative effects that this kind of emissions can have on the marine wildlife in general and in particular on marine mammals. In these animals,
M. André +2 more
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The issue of the environmental impact of shipping activities is treated in this work from the specific viewpoint of underwater noise emissions from the vessels. There has been recently a rising concern about the negative effects that this kind of emissions can have on the marine wildlife in general and in particular on marine mammals. In these animals,
M. André +2 more
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Underwater Noise Due to Marine Life
The Journal of the Acoustical Society of America, 1946The widespread use of underwater acoustical devices during the recent war made it necessary to obtain precise information concerning ambient noise conditions in the sea. Investigations of this subject soon led to the discovery that fish and other marine life, hitherto generally classified with the voiceless giraffe in noisemaking ability, have long ...
Donald P. Loye, Don A. Proudfoot
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Analysis of ship noise from underwater ambient noise
2016 Conference on Advances in Signal Processing (CASP), 2016Underwater signal processing includes several application areas like military application, disaster detection, finding natural resources, etc. When signal transmits through water, it may get overlap due to some inherent mechanisms like ship noise, wind noise, marine mammals noise, noise generated during all stages of oil production, and due to other ...
Akshada N. Kawade +3 more
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Environmental Protection: Underwater Noise and Noise in Port
2022Typically, pollution is considered as the diffusion of toxic or harmful materials on our earth. But pollution can also refer to the propagation of dangerous or harmful sounds in the environment, both in the water and the air. Currently no mandatory regulations are present to regulate noise emitted by ships, only Classification Societies in the recent ...
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Journal of Geophysical Research: Oceans, 1989
Numerous data on the spectra of underwater noise due to natural as well as artificial rain show a prominent and characteristic peak at a frequency around 14 kHz. It is argued that this acoustic emission is due to bubbles entrained in the liquid by the impact of raindrops.
A. Prosperetti +2 more
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Numerous data on the spectra of underwater noise due to natural as well as artificial rain show a prominent and characteristic peak at a frequency around 14 kHz. It is argued that this acoustic emission is due to bubbles entrained in the liquid by the impact of raindrops.
A. Prosperetti +2 more
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Identification of underwater acoustic noise
Proceedings of OCEANS'94, 2002The automatic recognition of noise situations in an underwater environment is an interesting issue, especially in coastal waters. In fact, recognition of ships by their acoustic signature captured by passive sonars can be very useful for automatic statistic tasks.
J. Ribeiro-Fonseca, L. Correia
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The impact of underwater noise
2022The description of sound as a form of energetic pollutant is very complex as is also its impact on aquatic life. Human activities causing continuous and implosive underwater noise, such as marine traffic, maintenance of ships, coastal tourism, marine research, military, offshore energy platforms, generation of ocean energies and construction operations
Runko Luttenberger, Lidija +3 more
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Underwater noise from airplanes: An overlooked source of ocean noise
Marine Pollution Bulletin, 2018The effects of underwater noise pollution on marine life are of increasing concern. Research and management have focussed on the strongest underwater sound sources. Aerial sound sources have understandably been ignored as sound transmits poorly across the air-water interface.
Christine Erbe +5 more
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