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Interference of biological noise in sonar detection

Abstract:

There are a wide range of ambient noise sources within the underwater acoustics. Acoustic noise can vary over time in intensity and spectral composition, depending on environmental conditions. In passive sonar detection the target of interest is surrounded by several noises, environmental and other radiated noise from other sources. The acoustic detection systems in underwater warfare are important for ships and submarines that have acoustic sensors to determine the presence of any contact. The lack of information on the noise that disrupts the acoustic detection sensors and interferes with the recognition, possibly mask the contacts endangering the surface and submarine operations. In order to solve this problem, it is fundamental to develop an information system model that allow the identification of the signals of interest and classify the targets.