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org-arl / UnderwaterAcoustics.jl

Julia toolbox for underwater acoustic modeling
MIT License
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Using wave surface data to generate noise #27

Open dmansinha opened 3 years ago

dmansinha commented 3 years ago

I have recordings of the mean period, peak period, and significant wave height from a buoy. Is there a way to simulate ambient noise due to wave breaking with this package or some other method?

mchitre commented 3 years ago

A lot of the noise due to wave breaking comes from ringing of bubbles. Although UnderwaterAcoustics.jl has some support for bubble acoustics (e.g. bubbleresonance() etc), we do not have readymade ambient noise generators for wave noise. One could potentially add it in, and if you end up doing it, contributions will be welcome.

Although I have not directly worked on this problem, I know there are models that give you bubble size distribution given wave properties, and how much of the wave energy is converted to acoustic energy. Combining these, you should be able to generate ambient noise with the right properties. As a starting point, you might want to look at this paper: https://asa.scitation.org/doi/abs/10.1121/1.3419774

@grantdeane, do you have any advice for @dmansinha ?