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首页> 外文期刊>Acoustical physics >Study of the mechanism for broadening of the spectrum of a low-frequency reverberation signal for sound scattering by near-surface inhomogeneities under conditions of intense wind waves
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Study of the mechanism for broadening of the spectrum of a low-frequency reverberation signal for sound scattering by near-surface inhomogeneities under conditions of intense wind waves

机译:在强风波条件下近表面不均匀性散射散射光谱散射频谱的研究

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摘要

The paper considers the problem of backscattering of sound waves by near-surface volumetric inhomogeneities under conditions of intense wind waves. We calculate the expected share of the scattered signal spectrum based on the given wind-wave intensity and the depth distribution of volumetric inhomogeneities. For deep ocean conditions in the frequency range of 500-1000 Hz for a pulse duration of 10 s, we measure the levels and shape of the reverberation spectrum for time delays from 20 to 100 s. Comparison of the measured and calculated reverberation spectra has shown their good coincidence.
机译:本文考虑了在强烈风波条件下通过近表面体积的不均匀性反向散射声波的问题。 基于给定的风波强度和体积不均匀性的深度分布,我们计算散射信号光谱的预期份额。 对于脉冲持续时间为10秒的500-1000 Hz的频率范围内的深海洋条件,我们测量20至100秒的时间延迟的混响谱的水平和形状。 测量和计算的混响光谱的比较显示出它们的良好巧合。

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