| 赵梅,胡长青.浅海倾斜海底声场空间相关性研究[J].声学技术,2010,(4):365~369 |
| 浅海倾斜海底声场空间相关性研究 |
| Study of the sound spatial correlation in shallow water with inclined seafloor |
| 投稿时间：2010-03-08 修订日期：2010-05-17 |
| DOI： |
| 中文关键词: 倾斜海底 空间相关 抛物方程法 |
| 英文关键词: inclined seafloor spatial correlation parabolic equation method |
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| 中文摘要: |
| 针对浅海倾斜海底海洋环境, 对声场的空间相关性进行了研究。利用抛物方程法, 对浅海声场的空间相关系数进行数值模拟, 并结合2001年东中国海中美联合实验数据, 分析了声场空间相关系数与海底倾斜角度、接收阵元与参考阵元的间隔、参考阵元深度及声源深度之间的关系。对于上坡海底, 浅海声场空间相关性随着海底倾斜角度、接收阵元与参考阵元间隔的变大而变弱, 且垂直相关系数随着接收阵元与参考阵元间隔的增大, 先衰减再出现起伏。 |
| 英文摘要: |
| The spatial correlation in shallow water with inclined seafloor is studied in this paper.The sound spatial correlation coefficients are calculated by numerical simulation based on the parabolic equation method.There are connections between the spatial correlation coefficients and some parameters, such as the inclined angle of seafloor, the range between the receiver and the reference hydrophone, and the depths of the reference hydrophone and the source.These connections are discussed with the results from the 2001 Asian Seas International experiment.For upslope bottom, the spatial correlations decrease with the increases of the inclined angle of seafloor and the hydrophone separation, and the sound filed vertical correlation coefficients become fluctuant after decreasing as the range between the receiver and the reference hydrophone increasing. |
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