Underdetermined DOA estimation by the non-linear music exploiting higher-order moments

Yuya Sugimoto, Shigeki Miyabe, Takeshi Yamada, Shoji Makino, Biing Hwang Juang

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

This paper describes a new approach for extending MUltiple SIgnal Classification (MUSIC) to underdetermined direction-of-arrival (DOA) estimation with high resolution by exploiting higher-order moments. The proposed method maps the observed signals nonlinearly onto a space of expanded dimensions, in which signal statistics are analyzed. The covariance matrix in the higher-dimensional space corresponds to the higher-order cross moment matrix in the original space of the observed signals. Since the dimensionality of the noise subspace is increased by the mapping, the proposed method achieves higher resolution DOA estimation than the standard MUSIC, and also offers the ability to estimate DOAs in underdetermined conditions. We compared the characteristic of the proposed method with that of the conventional 2q-MUSIC utilizing higher-order cumulants theoretically and experimentally.

本文言語English
ホスト出版物のタイトルInternational Workshop on Acoustic Signal Enhancement, IWAENC 2012
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9783800734511
出版ステータスPublished - 2012
外部発表はい
イベントInternational Workshop on Acoustic Signal Enhancement, IWAENC 2012 - Aachen, Germany
継続期間: 2012 9月 42012 9月 6

出版物シリーズ

名前International Workshop on Acoustic Signal Enhancement, IWAENC 2012

Conference

ConferenceInternational Workshop on Acoustic Signal Enhancement, IWAENC 2012
国/地域Germany
CityAachen
Period12/9/412/9/6

ASJC Scopus subject areas

  • ソフトウェア
  • 音響学および超音波学
  • コンピュータ ネットワークおよび通信
  • 信号処理

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