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Acoust. Sci. & Tech., 22, 1(2001) ACOUSTICAL LETTER

Summary: Acoust. Sci. & Tech., 22, 1(2001)
Feedback Active Noise Control System Based on H Control
Shuichi Adachi, Michiya Ogawa, Akira Takahashi and Hisashi Sano
Faculty of Engineering, Utsunomiya University,
7-1-2 Yoto, Utsunomiya, 321-8585 Japan
Honda R&D Co., Ltd.,
4730 Haga-machi, Haga-gun, Tochigi, 321-3393 Japan
(Received 00 January 2001, Accepted for publication 00 XX 20XX)
Keywords: Active noise control, Feedback control, Acoustic field, H control
PACS number: 43.50.Ki
1. Introduction
Feedback active noise control (FB-ANC) [1] can eliminate
low-frequency noise below 300 Hz which substantially consti-
tutes the road noise inside an automobile. An FB-ANC system
is developed by first constructing a lower-order infinite impulse
response (IIR) model for the acoustic transmission system, this
model incorporates a loudspeaker, an acoustic field and a mi-
crophone. A feedback controller is then developed by H con-
trol based on the model. Digital control is implemented by


Source: Adachi, Shuichi - Electrical and Electronic Engineering, Faculity of Engineering, Utsunomiya University


Collections: Engineering