Papers

An Efficient Multichannel Linear Prediction-Based Blind Equalization Algorithm in Near Common Zeros Condition

International Journal
2011~2015
작성자
이진영
작성일
2013-12-01 21:58
조회
144
Authors : Jae-Mo Yang, Hong-Goo Kang

Year : 2014

Publisher / Conference : IEEE Signal Processing Letters

Volume : 21, issue 3

Page : 306-310

This letter proposes an efficient multichannel acoustic channel equalization method under insufficient channel diversity conditions. To overcome an ill-posed problem caused by near common zeros (NCZs) conditions between different channels, a regularization method that restricts the filter norm has been investigated. However, direct application of this method to the linear-predictive multi-input equalization (LIME) method is not effective. To address this situation, this letter puts forth a novel method to disregard the erroneous term of the LIME solution matrix and to increase forced channel diversity (FCD). The accuracy of the proposed equalization filter is compared to that of the conventional regularization method. Experimental results confirm that the NCZs problem can be solved by adopting the proposed methods.
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