| 空气中风和声速剖面对空气声透射入水影响 |
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| 引用本文： | 张翼鹏,马远良.空气中风和声速剖面对空气声透射入水影响[J].声学技术,2007,26(2):211-216. |
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| 作者姓名： | 张翼鹏 马远良 |
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| 作者单位： | 西北工业大学声学工程研究所,西安,710072 |
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| 摘 要： | 在研究空气声源激发的水下声场时,通常假定空气为静止、均匀半空间,而没有考虑空气中实际声传播条件(风和声速剖面)的影响。在基于传播矩阵的快速场模型基础上,可得出计算运动介质中声传播的二维快速场模型FFP2DM,和远场近似条件下的一维快速场模型FFP1DM。用这两个模型,对空气中风和声速剖面对空气声透射入水的影响进行研究。结果表明:空气中风速剖面和声速剖面对空气中声传播有很大影响,但对于透射进入水中的声波影响很小。
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| 关 键 词： | 快速场 运动介质 空气声波透射入水 |
| 文章编号： | 1000-3630（2007）-02-0211-06 |
| 收稿时间： | 2006-07-15 |
| 修稿时间： | 2006-07-152006-10-30 |
Influence of wind and sound speed profile in air on transmission of sound into water |
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| ZHANG Yi-peng and MA Yuan-liang.Influence of wind and sound speed profile in air on transmission of sound into water[J].Technical Acoustics,2007,26(2):211-216. |
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| Authors: | ZHANG Yi-peng and MA Yuan-liang |
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| Affiliation: | Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China;Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China |
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| Abstract: | Air layer is previously assumed to be a homogeneous,stationary media when the air-to-water sound transmission was involved.However it has been known that wind and the sound speed profile have great influence on the atmospheric sound propagation.To study its influence on air-to-water sound transmission,a two-dimensional fast field program model is derived using two-dimensional horizontal wave-number spectrum.To reduce the calculation burden of the two-dimen-sional FFP,a one-dimensional FFP is derived based on far field approximation.Using the derived models,the effect of wind and the sound speed profile on the sound transmission into the sea is studied.The results show that wind and the sound speed profile have little influence on air-to-water sound transmission. |
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| Keywords: | fast field program air-to-water sound transmission wind and sound speed profile |
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