An active noise control system based on simultaneous equations method without auxiliary filters

被引：1

作者：

Muneyasu, M ^{[1
]}

Hisayasu, O ^{[1
]}

Fujii, K ^{[1
]}

Hinamoto, T ^{[1
]}

机构：

[1] Kansai Univ, Fac Engn, Suita, Osaka 5648680, Japan

来源：

2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS | 2005年

关键词：

D O I：

10.1109/ISCAS.2005.1464573

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simultaneous equations method is one of active noise control algorithms without estimating an error path. This algorithm requires identification of a transfer function from a reference microphone to an error microphone containing the effect of a noise control filter. It is achieved by system identification of an auxiliary filter. As a result, the amount of computation is increased. In this paper, a new simultaneous equations method without the identification of the auxiliary filter is proposed. By storing a small number of an input signal and an error signal, we avoid this identification. Therefore, the amount of computation can be reduced by approximately 25% and same noise reduction performance with an ordinary method is obtained. From simulation examples, it is verified that the merits of the ordinary method is retained in the proposed method.

引用

页码：256 / 259

页数：4

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