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http://dx.doi.org/10.6109/jkiice.2007.11.5.915

Tonal Extraction Method for Underwater Acoustic Signal Using a Double-Feedback Neural Network  

Lim, Tae-Gyun (동양대학교)
Lee, Sang-Hak (동양대학교)
Abstract
Using the existing algorithms that estimate the background noise, the detection probability for the week tonals is low and for the even week tonals, there is a limit not detected. Therefore it is required to algorithms which can improve the performance of the tonal extraction. Recently, many researches using artificial neural networks in sonar signal processing are performed. We propose a neural network with double feedback that can remove automatically the background noise and detect the even week tonals buried in background noise, therefore not detected by growing the week tonals lastingly for a certain time. For the real underwater target, experiments for the tonal extraction are performed by using the existing algorithms that estimate the background noise and the proposed neural network. As a result of the experiment, a method using the proposed neural network showed the better performance of the tonal extraction in comparison with the existing algorithms.
Keywords
SONAR;
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  • Reference
1 W. A. Struzinski and E. D. Lowe, 'A performance comparison of four noise background normalization schemes proposed for signal detection systems,' Journal Acoustical Society of America, vol. 76, no. 6, pp. 1738-1742, Dec., 1984   DOI   ScienceOn
2 Shapiro J. H., Green T. J. Jr, 'Performance of Split Window Multipass-Mean Noise Spectral Estimators,' Transactions on Aerospace and Electronic Systems, vol.36, no.4, pp. 1360-1370, Oct., 2000   DOI   ScienceOn
3 하석운, 이성은, 남기곤, 윤태훈, 김재창, 김길중,'신경회로망을 이용한 수중음향신호의 주파수선 특징 추출,' 대한전자공학회, vol. 34, no.1, pp.51-58, Jan., 1997