Acoustic echo cancellation with reduced-rank adaptive interpolated filter based on parallel-branch diversity decimation

Masahiro Yukawa, Rodrigo C. De Lamare, Raimundo Sampaio-Neto

研究成果: Conference contribution

抄録

This paper presents an efficient acoustic echo cancellation (AEC) scheme based on reduced-rank interpolated adaptive filtering with parallel decimation, motivated by diversity techniques developed in wireless communications. The proposed scheme jointly optimizes an interpolation filter, a decimator unit and a reduced-rank filter in such a way that the output error is minimized, leading to very substantial improvements of the mean squared error performance. With a practical choice of parameters in AEC, the total computational complexity of the proposed scheme is approximately half of the one of the NLMS algorithm. The numerical examples demonstrate that the proposed algorithm offers very significant reduction in mean squared error performance.

本文言語English
ホスト出版物のタイトル2007 15th International Conference on Digital Signal Processing, DSP 2007
ページ39-42
ページ数4
DOI
出版ステータスPublished - 2007 12 1
外部発表はい
イベント2007 15th International Conference onDigital Signal Processing, DSP 2007 - Wales, United Kingdom
継続期間: 2007 7 12007 7 4

出版物シリーズ

名前2007 15th International Conference on Digital Signal Processing, DSP 2007

Other

Other2007 15th International Conference onDigital Signal Processing, DSP 2007
CountryUnited Kingdom
CityWales
Period07/7/107/7/4

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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