| Geoacoustic Inversion Based on Dispersion Characteristic of Normal Modes in Shallow Water |
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| 作者姓名： | 李整林 张仁和 |
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| 作者单位： | National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10474112 and 10234050. |
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| 摘 要： |
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| 关 键 词： | 色散 普通模式 高分辨率 光学 |
| 收稿时间： | 2006-11-7 |
| 修稿时间： | 2006-11-07 |
Geoacoustic Inversion Based on Dispersion Characteristic of Normal Modes in Shallow Water |
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| LI Zheng-Lin,ZHANG Ren-He.Geoacoustic Inversion Based on Dispersion Characteristic of Normal Modes in Shallow Water[J].Chinese Physics Letters,2007,24(2):471-474. |
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| Authors: | LI Zheng-Lin ZHANG Ren-He |
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| Institution: | National Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | A geoacoustic inversion method based on dispersion characteristic of normal modes is presented. An adaptive time-frequency analysis technique with a high resolution in both time and frequency domains is applied to derive the dispersion characteristic of normal modes from the broadband propagation signal. The bottom acoustic parameters are inverted by matching the calculated group delays of normal modes with the experimental data. Finally, some experimental results which could validate the inversion method are given. |
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| Keywords: | 43 30 Pc 43 30 Ma |
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