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| 海洋噪声场的时空相关函数 | |
| 引用本文： | 唐应吾. 海洋噪声场的时空相关函数[J]. 声学学报,1986,11(1): 20-29. DOI: 10.15949/j.cnki.0371-0025.1986.01.002 |
| 作者姓名： | 唐应吾 |
| 作者单位： | 中国科学院声学研究所 |
| 摘 要： | 本文借助于方向性点源的平面波展开式导出了海洋中噪声场的时空相关函数的普遍表式。用演绎法将该表式用于分层不均匀浅海与分层不均匀深海,建立了噪声场的时空相关函数与海洋环境参数的有机联系。 文中利用接收器附近点（噪声）源的奇性条件简化了浅海中噪声场时空相关函数的计算。接着用简正波理论计算了均匀浅海中噪声场的时空相关函数。 |
| 收稿时间： | 1983-10-19 |
SPACE-TIME CORRELATION FUNCTION OF NOISE FIELD IN THE OCEAN |
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| TANG Ying-wu. SPACE-TIME CORRELATION FUNCTION OF NOISE FIELD IN THE OCEAN[J]. ACTA ACUSTICA,1986,11(1): 20-29. DOI: 10.15949/j.cnki.0371-0025.1986.01.002 | |
| Authors: | TANG Ying-wu |
| Abstract: | In this paper,by means of the plane wave representation for the radiation of a diretional point source,the general expression of space-time correlation function of the noise field in the ocean is derived. This expression is applied to inhomogenous shallow water and inhomogenous deep water. The organic relation of the space-time correlation function of the noise field with ambient parameters is established. By means of singularity condition of point （noise） source near the receiver,the calculus of space-time correlation function of the noise field is simplified. Whereas,the space-time correlation function of noise field in homogenous shallow water is calculated with the normal mode method. |
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