风和船舶噪声对深海环境噪声深度依赖性和空间相干性影响的模拟研究

Kai Zhang, T. C. Yang, Wen Xu
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引用次数: 0

摘要

以往的实验表明,深海环境噪声在临界深度以下比在临界深度以上要小。虽然了解了环境噪声的一般特征,但定量研究必须考虑收集数据的声学条件。本文利用模拟数据分析了低频地表噪声的深度依赖性和垂直相干性,并研究了局地/远地风、船舶等环境条件对低频地表噪声的影响。所得结果可用于解释实验数据。
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Influence of Wind and Shipping Noises on the Depth Dependence and Spatial Coherence of Ambient Noise in the Deep Ocean: A Simulation Study
Previous experiments showed that the ambient noise level in deep ocean is smaller below the critical depth than above the critical depth. While the general features of the ambient noise was understood, quantitative studies must consider the acoustic conditions where the data are collected. In this paper, we analyze the depth dependence and vertical coherence of surface-generated noises at low frequencies using simulated data, and study the influence of environmental conditions such as local/distant wind and shipping. The results can be used to interpret the experimental data.
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