| 声波在水-多孔介质海底界面上的反射与透射 |
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| 引用本文： | 彭临慧,赵燕鹏,郁高坤.声波在水-多孔介质海底界面上的反射与透射[J].中国海洋大学学报(自然科学版),2007,37(4):671-675. |
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| 作者姓名： | 彭临慧 赵燕鹏 郁高坤 |
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| 作者单位： | 中国海洋大学信息科学与工程学院,山东,青岛,266100 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 声波在海底界面的反射和透射是海底散射、海底混响、海底目标探测的重要问题。利用Biot多孔介质声传播理论对声波在水-多孔海底界面上的反射和透射进行了分析,具体给出反射声波的反射系数,3种透射声波的透射系数以及声能透射系数随入射波入射角和频率(10~40 kHz)的变化关系,分析了各种透射波对透射声能的贡献。多孔海底介质参数分别采用Stoll和Chotiros给出的2组参数进行理论计算。
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| 关 键 词： | 多孔介质 海底 声透射 |
| 文章编号： | 1672-5174（2007）04-671-05 |
| 修稿时间： | 2006-11-102007-04-18 |
Reflection and Refraction of Acoustic Waves at a Water-Porous Sediment Interface |
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| PENG Lin-Hui,ZHAO Yan-Peng,YU Gao-Kun.Reflection and Refraction of Acoustic Waves at a Water-Porous Sediment Interface[J].Periodical of Ocean University of China,2007,37(4):671-675. |
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| Authors: | PENG Lin-Hui ZHAO Yan-Peng YU Gao-Kun |
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| Institution: | College of Information Science and Engineering, Ocean University of China, Qingdao 266071, China |
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| Abstract: | Reflection and refraction of acoustic waves at a sediment interface is an important problem for seafloor scattering,bottom reverberation and the acoustic detection of objects.Following Biot's theory,sound reflection and refraction at water-porous sediment interface is analyzed,the dependency of the reflection coefficients,refraction coefficients of three kinds of body waves and coefficients of penetration sound energy flow upon the incident angle and frequency is discussed.The contributions of these kinds of body waves to the penetration sound energy flow are also analyzed.Stoll's data and Chotiros's data were used as the input parameters of the porous sediment for theoretical calculation. |
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| Keywords: | porous media seafloor sound penetration |
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