Robust Detection of Underwater Transient Signals Using EVRC Noise Suppression Module

Taehwan KIM  Keunsung BAE  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E93-A   No.7   pp.1371-1374
Publication Date: 2010/07/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E93.A.1371
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Engineering Acoustics
transient signal detection,  underwater acoustics,  EVRC,  

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Detection of transient signals is generally done by examining power and spectral variation of the received signal, but it becomes a difficult task when the background noise gets large. In this paper, we propose a robust transient detection algorithm using the EVRC noise suppression module. We define new parameters from the outputs of the EVRC noise suppression module for transient detection. Experimental results with various types of underwater transients have shown that the proposed method outperforms the conventional energy-based method and achieved performance improvement of detection rate by 7% to 15% for various types of background noise.