講演名 2005-06-27
A Technique for Active Noise Control Systems with Online Secondary Path Modeling Using Additive Noise Power Scheduling
,
PDFダウンロードページ PDFダウンロードページへ
抄録(和)
抄録(英) This paper proposes a new method for online secondary path modeling (OSPM) in active noise control (ANC) systems. The proposed method comprises two adaptive filters: a noise control filter and an OSPM filter. The noise control filter is adapted by the FxLMS algorithm, and using the same error signal as used in the adaptation of the OSPM filter. The OSPM filter is adapted using a variable step size (VSS) LMS algorithm already proposed by authors. Furthermore, the OSPM filter is excited by an additive random noise with a variable power. Initially, when the disturbance signal is large, a small step size and large additive random noise are used in the OSPM filter. Later, when ANC system converges, step size is increased and the variance of the additive random noise is decreased. The computer simulations show that the proposed method gives best performance among the existing methods.
キーワード(和)
キーワード(英) active noise control / online secondary path modeling / FxLMS algorithm / variable step size / noise power scheduling
資料番号 CAS2005-3,VLD2005-14,SIP2005-27
発行日

研究会情報
研究会 VLD
開催期間 2005/6/20(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 VLSI Design Technologies (VLD)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A Technique for Active Noise Control Systems with Online Secondary Path Modeling Using Additive Noise Power Scheduling
サブタイトル(和)
キーワード(1)(和/英) / active noise control
第 1 著者 氏名(和/英) / AKHTAR Muhammad TAHIR
第 1 著者 所属(和/英)
Graduate School of Engineering, Tohoku University
発表年月日 2005-06-27
資料番号 CAS2005-3,VLD2005-14,SIP2005-27
巻番号(vol) vol.105
号番号(no) 147
ページ範囲 pp.-
ページ数 6
発行日