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Distributed acoustic sensing measurements of active and passive sources up to 1 kHz

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Experiment examines DAS and hydrophones to gather active and passive acoustic data, indicating various measurement advantages.

DAS measurements effectively captured acoustic data from active and passive sources up to 1 kHz, supporting high-resolution analysis.
Active source data was collected at varying depths of 1, 5, and 10 m along with passive data over a 9-day period.
Utilizing telecommunication fiber-optic cables, DAS achieved dense sampling across 3.5 km with a channel spacing of 6.38 m.
This method highlights the potential of DAS to complement hydrophone data in underwater acoustic research.

Douglass et al. (2025) studied this question.

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