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Target detection in a AIS modeled shipping noise field off the west coast of Portugal

Underwater Acoustics Conference and Exhibit 2017, Skyathos (Grecce)

S.M. Jesus sjesus(at),
LarSys, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro (Portugal).
C. Soares csoares(at),
F. Zabel fredz(at),
Marsensing, Campus de Gambelas, 8005-139, Faro (Portugal).

Comments: no download.
Ref.: in UACE'2017, Skyathos (Greece), September 2017.

This work presents a theoretical study of the passive detection of an acoustic target in a shipping noise induced field. Optimal and sub-optimal detectors are derived for deterministic and random assumed propagation channels. Their performance is analytically derived and compared. The various detectors are then tested on a realistic shipping noise distribution obtained from AIS data recorded off the west coast of Portugal during August 2014 for various target ranges, depths and frequency spectra. This study is a preparatory work for the development of a set of acoustic surveillance buoys to be deployed during 2017 offshore the west coast of Portugal under project SUBECO. First test at sea is now scheduled for April 2017.