Robust relative transfer function estimation for dual microphone-based generalized sidelobe canceller

Kihyeon Kim, Hanseok Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this Letter, a robust system identification method is proposed for the generalized sidelobe canceller using dual microphones. The conventional transfer-function generalized sidelobe canceller employs the non-stationarity characteristics of the speech signal to estimate the relative transfer function and thus is difficult to apply when the noise is also non-stationary. Under the assumption of W-disjoint orthogonality between the speech and the non-stationary noise, the proposed algorithm finds the speech-dominant time-frequency bins of the input signal by inspecting the system output and the inter-microphone time delay. Only these bins are used to estimate the relative transfer function, so reliable estimates can be obtained under non-stationary noise conditions. The experimental results show that the proposed algorithm significantly improves the performance of the transfer-function generalized sidelobe canceller, while only sustaining a modest estimation error in adverse non-stationary noise environments.

Original languageEnglish
Pages (from-to)1794-1797
Number of pages4
JournalIEICE Transactions on Information and Systems
VolumeE92-D
Issue number9
DOIs
Publication statusPublished - 2009

Keywords

  • Dual microphone arrays
  • Generalized sidelobe canceller
  • Relative transfer function estimation
  • Spectral classification
  • W-disjoint orthogonality

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence

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