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Active wideband higher-order raypath separation in multipath environment

Abstract : Multiple raypaths propagation is caused by reflection and refraction at the surface and the bottom of the water column. In this study, an active wideband higher-order separation is proposed, which enables the separation of raypaths interrupted by colored noise (as traditionally found in ocean environments) in the angle-vs-time domain. A comparative study shows that the proposed algorithm achieves a more accurate separation than other algorithms. Moreover, with the proposed approach, it is not necessary to assume that the number of sensors is larger than that of the sources. Furthermore, numerical results validate the noise suppression property of the proposed method. (C) 2017 Acoustical Society of America
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Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Monday, April 10, 2017 - 4:20:56 PM
Last modification on : Tuesday, October 19, 2021 - 7:01:55 PM

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Longyu Jiang, Yaping Hong, Philippe Roux, Jiasong Wu, Huazhong Shu. Active wideband higher-order raypath separation in multipath environment. Journal of the Acoustical Society of America, Acoustical Society of America, 2017, 141 (1), pp.EL38--EL44. ⟨10.1121/1.4972570⟩. ⟨hal-01504870⟩



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