Title :
Independent Component Analysis for Optimal Passive Sonar Signal Detection
Author :
de Moura, N.N. ; Seixas, J.M. ; Filho, William Soares ; Greco, Ana V.
Author_Institution :
COPPE/Poli-UFRJ, Rio de Janeiro
Abstract :
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.
Keywords :
direction-of-arrival estimation; independent component analysis; sonar detection; sonar signal processing; underwater sound; underwater vehicles; ICA; bearing resolution; direction-of-arrival estimation; independent component analysis; optimal passive sonar signal detection; optimal target detection; signal DOA estimation; space interference; submarine acoustics; Acoustic sensors; Acoustical engineering; Direction of arrival estimation; Independent component analysis; Interference; Marine vehicles; Object detection; Signal detection; Sonar detection; Underwater vehicles;
Conference_Titel :
Intelligent Systems Design and Applications, 2007. ISDA 2007. Seventh International Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-0-7695-2976-9
DOI :
10.1109/ISDA.2007.138