An efficient robust stereophonic acoustic echo canceler based on parallel subgradient projection techniques

Isao Yamada, Masahiro Yukawa

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

A robust adaptive filtering algorithm was established recently (I.Yamada, K.Slavakis, K.Yamada 2001) based on the interactive use of statistical noise information and the ideas developed originally for efficient algorithmic solutions to the convex feasibility problems . The algorithm is computationally efficient and robust to noise because it requires only an iterative parallel projection onto a series of closed half spaces highly expected to contain the unknown system to be identified and is free from the computational load of solving a system of linear equations. In this paper, we show the potential applicability of the algorithm to the stereophonic acoustic echo cancellation (SAEC) problem that has commonly been recognized as one of the most challenging adaptive filtering problems due to the nonuniqueness problem. The numerical examples demonstrate that the proposed algorithm realizes stereophonic acoustic echo cancelers (SAECRs) showing dramatically fast and stable convergence for highly coloured excited speech like input signals in severely noisy environments.

本文言語English
ホスト出版物のタイトルICSP 2002 - 2002 6th International Conference on Signal Processing, Proceedings
編集者Baozong Yuan, Xiaofang Tang
出版社Institute of Electrical and Electronics Engineers Inc.
ページ293-296
ページ数4
ISBN(電子版)0780374886
DOI
出版ステータスPublished - 2002 1月 1
外部発表はい
イベント6th International Conference on Signal Processing, ICSP 2002 - Beijing, China
継続期間: 2002 8月 262002 8月 30

出版物シリーズ

名前International Conference on Signal Processing Proceedings, ICSP
1

Other

Other6th International Conference on Signal Processing, ICSP 2002
国/地域China
CityBeijing
Period02/8/2602/8/30

ASJC Scopus subject areas

  • ソフトウェア
  • 信号処理
  • コンピュータ サイエンスの応用

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