Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Formation of the Quiet Zone in an Automobile using Headset

헤드셋을 이용한 승용차 실내 저소음 영역의 생성

  • 이철 (금오공과대학교 정밀기계공학과) ;
  • 김인수 (금오공과대학교 정밀기계공학과) ;
  • 홍석윤 (서울대학교 공과대학 조선해양공학과)
  • Published : 1997.04.01
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Abstract

This paper presents active noise control method to form the near-field quiet zone for passengers in an automobile. The actuator model including interior acoustic plant, speaker and amplifier is experimentally identified in forms of auto-regressive and moving average by means of least mean square algorithm, The digital controller is composed of the regulator and Kalman filter to be designed based on LQG (linear quadratic gaussian). If the actuator model is prefiltered with digital filter to be properly designed for concentrating control performance index on the frequency band of primary noise source, LQG design approach can be effectively applied for the design of headset controller. Experimental results demonstrate that near-field quiet zone showing about 10dB noise reduction at microphone position can be formed using the headset located at passenger seat.

Keywords

References

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