Analysis of the arriving-angle structure of the forward scattered wave on a vertical array in shallow water

Chuanlin He; Kunde Yang; Yuanliang Ma; Bo Lei

doi:10.1121/1.4962338

Analysis of the arriving-angle structure of the forward scattered wave on a vertical array in shallow water

Chuanlin He, Kunde Yang, Yuanliang Ma, Bo Lei

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The arriving-angle structure for the forward scattered wave on a vertical line array is obtained upon a modified scattering model in the Pekeris waveguide. The structure is investigated and interpreted by the array invariant theory combined with target induced modal coupling effect. Compared with that of the direct blast, the arriving-angle structure of the forward scattering wave owns multi-striations as well as an increased vertical array invariant. The forward scattered angle structure is dependent on the target position on the source-receiver line. Simulations indicate a potential separation for the forward scattered wave overwhelmed by the direct blast.

Original language	English
Pages (from-to)	EL256-EL262
Journal	Journal of the Acoustical Society of America
Volume	140
Issue number	3
DOIs	https://doi.org/10.1121/1.4962338
State	Published - 1 Sep 2016

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abstract = "The arriving-angle structure for the forward scattered wave on a vertical line array is obtained upon a modified scattering model in the Pekeris waveguide. The structure is investigated and interpreted by the array invariant theory combined with target induced modal coupling effect. Compared with that of the direct blast, the arriving-angle structure of the forward scattering wave owns multi-striations as well as an increased vertical array invariant. The forward scattered angle structure is dependent on the target position on the source-receiver line. Simulations indicate a potential separation for the forward scattered wave overwhelmed by the direct blast.",

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AB - The arriving-angle structure for the forward scattered wave on a vertical line array is obtained upon a modified scattering model in the Pekeris waveguide. The structure is investigated and interpreted by the array invariant theory combined with target induced modal coupling effect. Compared with that of the direct blast, the arriving-angle structure of the forward scattering wave owns multi-striations as well as an increased vertical array invariant. The forward scattered angle structure is dependent on the target position on the source-receiver line. Simulations indicate a potential separation for the forward scattered wave overwhelmed by the direct blast.

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Analysis of the arriving-angle structure of the forward scattered wave on a vertical array in shallow water

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