Analysis of the Influence of Sea-Surface Reflection on Locating the Underwater Sound Source

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When test the underwater acoustic in the half-space which the sea-surface separate the free-space to,the conventional technology of PNAH can't be used to locate the underwater sound source.In order to solve the impact of the sea-surface reflection on the underwater acoustic testing,in this paper,use the method of mirror imaging to correct the sound field in the half-space.In this paper,introduce the principles and procedures of the method of mirror imaging to correct the sound field in the half-space.Simulate that make a sound field transformation of the corrected sound field in the half-space by the technology of planar near field acoustic holography in order to reconstruct the sound field of sound source surface.The simulation results show the influence of the sea-surface reflection on locating,and verify the effectiveness that use the method of mirror imaging to solve sea-surface reflection.Works above provide a reference for locating the underwater sound source.

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813-818

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January 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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