Direction of arrival estimation using matching pursuit and its application to source separation for convolved mixtures

Yasuhiro Oikawa, Yoshio Yamasaki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, we describe a new source separation method in which uses spatial information derived from the direction of arrival (DOA) estimates of each direct and reflected sound issued. The method we propose has the following steps: (1) each DOA is estimated using matching pursuit and reoptimized after each new DOA is estimated, (2) using these DOA estimates, the mixing matrix is also estimated and the inverse of the mixing matrix is used to separate the mixture signals. In our experiments, we obtained a better signal separation with the new method than with the conventional frequency-domain independent component analysis (ICA)-based source separation method.

Original languageEnglish
Pages (from-to)486-494
Number of pages9
JournalAcoustical Science and Technology
Volume26
Issue number6
DOIs
Publication statusPublished - 2005 Nov 16

Keywords

  • DOA estimation
  • DOA reoptimization
  • Delay-and-Sum array
  • Matching pursuit algorithm
  • Source separation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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