A Hybrid Active Noise Cancelling with Secondary Path Modeling

被引：2

作者：

Lopez-Gaudana, Edgar ^{[1
]}

Betancourt, Pablo ^{[1
]}

Cruz, Enrique ^{[1
]}

Nakano-Miyatake, Mariko ^{[2
]}

Perez-Meana, Hector ^{[2
]}

机构：

[1] Tecnol Monterrey CCM, DIEM DIA, Calle Puente 222, Mexico City 16034, DF, Mexico

[2] SEPI ESIME, Culhuacan Inst Politecn Nacl, Mexico City, DF, Mexico

来源：

2008 51ST MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2008年

关键词：

D O I：

10.1109/MWSCAS.2008.4616790

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a hybrid active noise cancelling (ANC) system, to overcome the acoustic feedback present in most feedforward ANC system, together with an on line secondary path estimation scheme. The ANC system provides a suitable solution to two important problems present in most ANC systems. The acoustic feedback is reduced using two FIR adaptive filters with feedforward and feedback configurations, respectively; while the secondary path modeling is carried out using a modification of the on line estimation method proposed by Akhtar. Computer simulation results show that the combination of the feedback and feedforward stages provides a fairly good acoustic feedback cancellation, while the secondary path estimation method performs fairly well, providing both a fairly good noise cancelation performance.

引用

页码：277 / +

页数：2

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