Noisy Reverberation Suppression Using AdaBoost Based EMD in Underwater Scenario. (4th February 2014)

• Record Type: Journal Article
• Authors: Cheepurupalli, Kusma Kumari; Konduri, Raja Rajeswari
• Other Names: Hühnerfuss Heinrich Academic Editor.
• Is Part Of: International journal of oceanography. Volume 2014(2014)
• Publication Date: 2014-02-04
• Subjects: Oceanography -- Periodicals; Oceanography; Periodicals; Electronic journals; 551.46
• DOI: 10.1155/2014/563780
• Languages: English
• ISSNs: 1687-9406

Abstract

Abstract : Reverberation suppression is a crucial problem in sonar communications. If the acoustic signal is radiated in the water as medium then the degradation is caused due to the reflection coming from surface, bottom, and volume of water. This paper presents a novel signal processing scheme that offers an improved solution in reducing the effect of interference caused due to reverberation. It is based on the combination of empirical mode decomposition (EMD) and adaptive boosting (AdaBoost) techniques. AdaBoost based EMD filtering technique is used for reverberation corrupted chirp signal to decrease the noisy components present in the received signal. An improvement in the probability of detection is achieved using the proposed algorithm. The simulation results are obtained for various reverberation times at various SNR levels.