UACE2017 Proceedings: Estimation of the acoustic noise radiated by vessels from the measurement of the vibration of the hull

Session:
Signal and image processing
Paper:
Estimation of the acoustic noise radiated by vessels from the measurement of the vibration of the hull
Author(s):
Francisco Javier Rodrigo Saura, Jaime Ramis-Soriano, Joaquín Fernández-Perles, Jesús Carbajo-San Martín, Pedro Poveda-Martínez
Abstract:
The shallow water area is characterized by\nconcentrating a high level of human activity\nin a wide range of fields as fishing, tourism,\nsailing or renewable energy generation. This\narea characterizes also by a complex and\nvariable acoustic propagation. All these\nfactors make clearly recommendable to\nperform specific studies aimed to analyze\nthe evolution of the acoustic signals during\nlong-term time intervals. On this basis, this\nstudy focused to show the underwater\nbackground noise variation in the frequency\ndomain using a bank of third-of-octave\nfilters both daily and throughout the annual\nseasons. It has been elaborated from\nenvironmental acoustic noise\nmeasurements that took place in the\nMediterranean Sea, in a shallow water area\nclose to the Cartagena Harbour. The study\ncenters especially in the analysis of the\nevolution of the parameters defined for\nDescriptor 11 of the Marine Strategy\nFramework Directive (MSFD). The results of\nthe study show a great variability of\nfrequencies and levels mainly associated\nwith the human activity in the area.
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