Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Design a Robust Controller to Attenuate Residual Noise in a Headset

헤드셋 내부의 소음 감쇄를 위한 강인 제어기의 설계

  • Chung, Tae-Jin (Dept. of Electrical Engineering, Soongsil University) ;
  • Park, Young-Sik (Dept. of Control & Instrumentaion Electrical Engineering, Myungji University) ;
  • Chung, Chan-Soo (Dept. of Electrical Engineering, Soongsil University)
  • 정태진 (숭실대학교 공과대학 전기공학과) ;
  • 박용식 (명지대학교 전기정보제어공학부) ;
  • 정찬수 (숭실대학교 공과대학 전기공학과)
  • Published : 1999.11.20
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Abstract

This paper implements an active noise controller in a headset by solving Robust $H_{\infty}$ control problem. In the $H_{\infty}$ control framework, we can suppose the noise in a headset as disturbance and the noise control problem is cast on the well-known $H_{\infty}$ regulation problem. By representing the system as LFT(Linear Fractional Transformaion) form, the controller is obtained using D-K iteraitons. The designed controller was implemented with operational amplifiers and it produced the desired noise reduction performance.

Keywords