Independent Component Analysis for Optimal Passive Sonar Signal Detection

The estimation of the Direction Of Arrival (DOA) of signals in a set of sensors has applications in different engineering areas. In submarine acoustics, the DOA estimates for a passive sonar system has the objective to inform the presence of a target (ship) in one determined direction (bearing). In...

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Bibliographic Details
Main Authors: de Moura, N.N., Seixas, J. M., Filho, William Soares, Greco, Ana V.
Format: Conference Proceeding
Language:English
Subjects:
Acoustic sensors
Acoustical engineering
Direction of arrival estimation
Independent component analysis
Interference
Marine vehicles
Object detection
Signal detection
Sonar detection
Underwater vehicles
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Description
Summary:The estimation of the Direction Of Arrival (DOA) of signals in a set of sensors has applications in different engineering areas. In submarine acoustics, the DOA estimates for a passive sonar system has the objective to inform the presence of a target (ship) in one determined direction (bearing). In accordance to the bearing's resolution, space interference can occur, which contaminates signals received in adjacent bearings. In this work, the independent component analysis (ICA) is applied for separating the interference sources and obtain optimal target detection in the respective direction. Results are presented for the passive reception of signals from merchant ships using two algorithms, JADE and FASTICA. The good performance achieved for blind separation points out that the proposed method can assist target detection, being used as a preprocessing tool.
ISSN:2164-7143
2164-7151
DOI:10.1109/ISDA.2007.138