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Comparison between different HOS-based tests for detection of ship-radiated signals in non-Gaussian noise

Comparison between different HOS-based tests for detection of ship-radiated signals in non-Gaussian noise

Authors :
Alessandra Tesei
Carlo S. Regazzoni
G. Tacconi
Source :
Proceedings of OCEANS'94.
Publication Year :
2002
Publisher :
IEEE, 2002.

Abstract

Conventional signal processing algorithms and detection criteria, optimised in presence of Gaussian noise, may degrade their performances in non-Gaussian environments. Higher Order Statistics (HOS) theory is a powerful means both for characterizing non-Gaussian noise and, then, for designing efficient and robust signal detectors. In particular, a method for detecting signals in additive independent non-Gaussian background noise have been investigated, analysed and compared with the bispectrum-based Hinich test and with a conventional spectrum-based detection criterion. In order to compare their respective performances, the different approaches have been applied on real underwater acoustic data, recording the passage of a target ship, in presence of background shipping traffic noise. >

Details

Database :
OpenAIRE
Journal :
Proceedings of OCEANS'94
Accession number :
edsair.doi.dedup.....1c74d393057a2cad6874c132955cf621
Full Text :
https://doi.org/10.1109/oceans.1994.363843