標題: Study of the acoustic feedback problem of active noise control by using the l(1) and l(2) vector space optimization approaches
作者: Bai, MSR
Wu, TY
交大名義發表
機械工程學系
National Chiao Tung University
Department of Mechanical Engineering
公開日期: 1-八月-1997
摘要: This study attempts to explore the acoustic feedback problem that is frequently encountered in feedforward active noise control (ANC) structure from the standpoint of control theories. The analysis is carried out on the basis of the Youla's parametrization and the l(1)-norm and l(2)-norm vector space optimization. The ANC problem is formulated as a model matching procedure and is solved via linear programming in the dual vector space. These methods alleviate the problems caused by the nonminimum phase (NMP) zeros of the cancellation path. The ANC algorithms are implemented by using a digital signal processor. Various types of noises were chosen for validating the developed algorithms. The proposed methods are also compared with the well-known filtered-u least-mean square (FULMS) method, The experimental results show that the acoustic feedback problem significantly degrades the performance and stability of the ANC system regardless which method is used. Insights into the difficulties due to acoustic feedback are addressed along the line of control theories. (C) 1997 Acoustical Society of America.
URI: http://dx.doi.org/10.1121/1.419853
http://hdl.handle.net/11536/410
ISSN: 0001-4966
DOI: 10.1121/1.419853
期刊: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume: 102
Issue: 2
起始頁: 1004
結束頁: 1012
顯示於類別:期刊論文


文件中的檔案:

  1. A1997XQ76300034.pdf