The objective for sound field control is to make acoustic characteristics of a listening room be close to those of the desired system. Conventional methods used to apply feedforward controllers such as digital filters to achieve this objective, however, feedback controllers were also necessary in order to attenuate noise or to compensate uncertainty of acoustic characteristics of the listening room. Since acoustic characteristics are well modeled on frequency domain, it is efficient to design controllers from the view point of frequency responses, but it is significantly difficult to design multi input multi output (MIMO) control system on wide frequency domain. In this paper, partial model matching method on frequency domain was adopted because this method required only sampled data instead of complex mathematical models c)f the plant in order to design controllers for MIMO systems.The method was applied to design 2 degree-of-freedom controllers for acoustic equalization and noise reduction. Experiments showed effectiveness of the proposed method.
雑誌名
日本機械学會論文集. C編
巻
71
号
702
ページ
505 - 512
発行年
2005-02-25
書誌レコードID
AN00187463
権利
社団法人 日本機械学会
情報源(ISSN)
03875024
フォーマット
application/pdf
形態
718681 bytes
著者版フラグ
publisher
日本十進分類法
530
その他の言語のタイトル
Stereo Sound Field Controller Design by Using Partial Model Matching on Frequency Domain
周波数領域での部分的モデルマッチングに基づくステレオ音場制御系設計(機械力学,計測,自動制御)
110006264558.pdf
(718.68KB)
