Active noise control system in a duct with partial feedback canceller

被引：0

作者：

Aoki, T ^{[1
]}

Morishita, T

Tanaka, T

Taki, M

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Engn, Dept Elect Engn, Hachioji, Tokyo 1920397, Japan

[2] Tokyo Natl Coll Technol, Dept Elect Engn, Hachioji, Tokyo 1938610, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2001年 / E84A卷 / 02期

关键词：

active noise control; acoustic feedback; reflection; duct;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The application of an active noise control system in a finite-length duct is studied. Previously proposed single-input-single-output systems are inappropriate in this case, because reflection at the terminals degrades the performance, and/or infinite-impulse-response filters are required for perfect noise cancellation. In this paper, we propose a single-input-single-output sq stem applicable to finite-length ducts, which theoretically achieves perfect noise cancellation while using finite-impulse-response filters only. The tap lengths of the filters are as short as the delays between the reference sensor and the secondary source. A useful implementation of the proposed system is also discussed.

引用

页码：400 / 405

页数：6