A Signal Enhancement Method Using the Iterative Blind Deconvolution for Microphone Array System

Jin-Nam PARK  Tsuyoshi USAGAWA  Masanao EBATA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E82-A   No.4   pp.611-618
Publication Date: 1999/04/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Advanced Signal Processing Techniques for Analysis of Acoustical and Vibrational Signals)
speech enhancement,  DSA,  algorithm for multiple unknown signals extraction (AMUSE),  coherency function,  cost-function,  source estimation,  

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This paper proposes an adaptive microphone array using blind deconvolution. The method realizes an signal enhancement based on the combination of blind deconvolution, synchronized summation and DSA (Delay-and-Sum Array) method. The proposed method improves performance of estimation by the iterative operation of blind deconvolution using a cost-function based on the coherency function.