Compression Techniques of Underwater Acoustic Signals for Real-Time Underwater Noise Monitoring

1. Felis, Ivan
2. Martínez, Rosa
3. Ruiz, Pablo
4. Er-rachdi, Hamid

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DOI: 10.3390/ECSA-6-06581 GOOGLE SCHOLAR lock_openOpen access editor

Sustainable development goals

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Abstract

The monitoring of the marine environment results in large amounts of data that must be processed and transmitted effectively for efficient resource management. In particular, given its high sampling rate, underwater noise signal acquisition technologies deserve special attention. In this article, a comparative study of the efficiency of different information processing and compression techniques is carried out, depending on the characteristics that want to be transmitted from the original signal. The applications and experiments carried out are focused on responding to the Marine Strategies, a marine environment planning instrument created under the Marine Strategy Framework Directive 2008/56/EC of 17 June, 2008 (MSFD), and, more specifically, to Descriptor 1, which regards the noise levels (both continuous and impulsive), as well as part of Descriptor 11, which is focused on the detection and abundance of cetaceans.