| 测量海底声学参数的匹配场反演方法 |
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| 引用本文： | 肖灵,张仁和,李风华,郭良浩.测量海底声学参数的匹配场反演方法[J].热带海洋学报,2001,20(4):23-27. |
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| 作者姓名： | 肖灵 张仁和 李风华 郭良浩 |
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| 作者单位： | 中国科学院 |
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| 基金项目： | 国家自然科学基金资助项目(10023004) |
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| 摘 要： | 在测量海底声学参数的实际海洋环境中，声源和接收位置的距离这两个参数常常无法准确测量，在这种情况下，需要采用匹配场反演方法来估计海底的声学参数。一般情况下，匹配场反演方法可以归纳为2个组成部分，即海洋声场的声学预报模型和搜索控制策略。文中采用受控制的穷举方法作为搜索控制策略，对1996年中美远黄海试验的实验数据进行了匹配场反演试验，用以测定海底参数，由此得到的海底声学参数与实验中测量的声场衰减进行对比，一致性很好。
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| 关 键 词： | 水声反演 最优搜索 穷举搜索 海底声学参数 匹配场反演 盒分割算法 |
| 文章编号： | 1009-5470(2001)04-0023-05 |
| 修稿时间： | 2000年6月9日 |
A MATCHED-FIELD INVERSION FOR MEASURING ACOUSTICAL SEA-BOTTOM PROPERTIES |
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| XIAO Ling,ZHANG Ren-he,LI Feng-hua,GUO Liang-hao.A MATCHED-FIELD INVERSION FOR MEASURING ACOUSTICAL SEA-BOTTOM PROPERTIES[J].Journal of Tropical Oceanography,2001,20(4):23-27. |
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| Authors: | XIAO Ling ZHANG Ren-he LI Feng-hua GUO Liang-hao |
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| Abstract: | The matched-field inversion can be used to estimate the ocean bottom properties in case the position of the source is not exactly measured. This inversion can be divided into two parts, including propagation model and search strategy. In this paper, a controlled exhausted search method, which is named Box Division Algorithm (BDA), is adopted for the search strategy. The matched field inversion proceeds from the real data of the China-US experiment in the far Yellow Sea in Aug. 1996. The sea bottom properties obtained from the inversion are then used to calculate the transmission loss and compared with the experimental signals. The consistency between the calculated transmission loss and the measured one and the consistency among the inversion results from different experiment signals show that BDA can play a robust role in the matched-field inversion for the ocean bottom properties. |
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| Keywords: | inversion nonlinear optimization exhausted search |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
