AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE

Tang Yingwu

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Tang Yingwu. AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE[J]. Haiyang Xuebao, 1981, 3(1): 70-78.

Citation:

Tang Yingwu. AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE[J]. Haiyang Xuebao, 1981, 3(1): 70-78.

Tang Yingwu. AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE[J]. Haiyang Xuebao, 1981, 3(1): 70-78.

Citation:

Tang Yingwu. AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE[J]. Haiyang Xuebao, 1981, 3(1): 70-78.

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AVERAGE SOUND INTENSITY IN SHALLOW WATER WITH POSITIVE SOUND VELOCITY GRADIENT AND RANDOMLY FLUCTUATING SURFACE

Tang Yingwu

Institute of Acoustics, Academia Sinica

Received Date: 1980-01-03

Abstract

Abstract

Assuming that shallow water with a positive sound velocity gradient has a rough surface,the change of surface height is a stationary stochastic process with Gaussian distribution.The normal-modes which can reach receiver are summed according to energy,and an expression for the averaged intensity is then obtained by averaging over the source and receiver depth witthin the turning-depth of pseudo-plane waves corresponding to these normal-modes.Theoretical results are in good agreement with experimental data.The structure of the sound field in the case of a quiet sea surface as a special case of rough surface.

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