Automated approach for recovering modal components in shallow waters - Archive ouverte HAL
Article Dans Une Revue Journal of the Acoustical Society of America Année : 2024

Automated approach for recovering modal components in shallow waters

Résumé

This paper proposes a fully automated method for recovering modal components from a signal in shallow waters. The scenario involves an unknown source emitting low-frequency sound waves in a shallow water environment, and a single hydrophone recording the signal. The proposed automated algorithm is based on the warping method to separate each modal component in the time-frequency space. However, instead of manually choosing a single arrival time for extraction, the method performs successive extractions with automated time selection based on an explicit quality factor. Modal component separation is achieved through a watershed algorithm, streamlining the process and eliminating the need for manual intervention. The proposed method is tested on experimental data of a right whale gunshot, a combustive sound source, and a bowhead whale upsweep, demonstrating its effectiveness in real-world scenarios.
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Dates et versions

hal-04686158 , version 1 (03-09-2024)

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Citer

Angèle Niclas, Josselin Garnier. Automated approach for recovering modal components in shallow waters. Journal of the Acoustical Society of America, 2024, 155 (4), pp.2347-2358. ⟨10.1121/10.0025471⟩. ⟨hal-04686158⟩
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