Noise power scheduling in active noise control systems with online secondary path modeling

IEICE Electronics Express

M. T. Akhtar¹  M. Abe²  M. Kawamata² 

[1] Department of Electrical Engineering, UAE University;Graduate School of Engineering, Tohoku University

关键词: active noise control;    FxLMS algorithm;    secondary-path modeling;    noise-power scheduling.;   

DOI  :  10.1587/elex.4.66

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(8)Cited-By(11)In active noise control (ANC) systems, the online secondary path modeling (OSPM) methods that use additive random noise are often applied. The additive random noise, however, contributes to the residual noise, and thus deteriorates the noise control performance of ANC systems. This paper proposes a new OSPM method with power scheduling of additive random noise. Here the OSPM filter is adapted using a variable step size (VSS) LMS algorithm already proposed by authors. Furthermore, the additive-random-noise power is scheduled based on the convergence status of an ANC system. Computer simulations demonstrate the effectiveness of the proposed method.

【 授权许可】

Unknown