Transfer Function Estimation Using a modified Wavelet shrinkage

수정된 웨이블렛 축소 기법을 이용한 전달함수의 추정

  • 김윤영 (서울대학교 공과대학 기계항공공학부) ;
  • 홍진철 (서울대학교 대학원 기계설계학과) ;
  • 이남용 (강원대학교 공과대학 제어계측공학과)
  • Published : 2000.10.01

Abstract

The purpose of the work is to present successful applications of a modified wavelet shrinkage method for the accurate and fast estimation of a transfer function. Although the experimental process of determining a transfer function introduces not only Gaussian but also non-Gaussian noises, most existing estimation methods are based only on a Gaussian noise model. To overcome this limitation, we propose to employ a modified wavelet shrinkage method in which L1 -based median filtering and L2 -based wavelet shrinkage are applied repeatedly. The underlying theory behind this approach is briefly explained and the superior performance of this modified wavelet shrinkage technique is demonstrated by a numerical example.

Keywords

References

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