Two-degree-of-freedom active noise control based on internal model control

Author

Adachi, Shuichi ; Sano, Hisashi

Author_Institution

Fac. of Eng., Utsunomiya Univ., Tochigi, Japan

fYear

1997

fDate

1-7 July 1997

Firstpage

1634

Lastpage

1639

Abstract

In this paper, we propose a new two-degree-of-freedom active noise control (2DOF-ANC) system, especially for active road noise control (ARNC) inside automobiles. The feedforward part of the proposed 2DOF-ANC system is a conventional filtered-x LMS (least mean square) adaptive control and the feedback part is based on an Internal Model Control (IMC). The effectiveness of the proposed 2DOF-ANC system is demonstrated through computer simulations using actual car data. System identification of the acoustic field is also discussed. Comparison between the conventional LMS algorithm and the RLS (recursive least squares) algorithm is carried out using experimental data.

Keywords

active noise control; adaptive control; automobiles; control system synthesis; feedback; identification; least mean squares methods; robust control; vibration control; 2DOF-ANC system; ARNC; IMC; LMS adaptive control; active road noise control; automobile; controller design; feedback part; internal model control; least mean square adaptive control; robust control; system identification; two-degree-of-freedom active noise control; vibration control; Adaptive control; Data models; Error correction codes; Europe; Frequency control; Microphones; Noise; active noise control; automobile; internal model control; system identification;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 1997 European

Conference_Location

Brussels

Print_ISBN

978-3-9524269-0-6

Type

conf

Filename

7082337