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Simulating Realistic-Looking Sediment Ripple Fields
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AI
DOI：10.1109/JOE.2009.2025905.png)
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Abstract
En 中文
Sandy sediment ripples impact sonar performance in coastal waters through Bragg scattering. Observations from data suggest that sandy ripple elevation relative to the mean seafloor as a function of the horizontal coordinates is not Gaussian distributed; specifically, peak amplitude fading over space associated with a random Gaussian process is largely absent. Such a non-Gaussian nature has implications for modeling acoustic scattering from, and penetration into, sediments. An algorithm is developed to generate ripple fields with a given power spectrum; these fields have non-Gaussian statistics and are visually consistent with data. Higher order statistics of these ripple fields and their implications to sonar detection are discussed.
Keywords:
Acoustics
penetration
ripple statistics
sand
scattering
sediments
Journal
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5.3
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2.6K
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