Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Wavelet Transform Based Compression of Power Quality Signal

웨이브렛 변환을 이용한 전력품질 신호 압축

  • Chung, Young-Sik (Dept. of Electrical Engineering, University of Incheon) ;
  • Kim, Cheol (Dept. of Electrical Engineering, University of Incheon)
  • 정영식 (인천대학교 전기공학과) ;
  • 김철 (인천대학교 전기공학과)
  • Published : 2006.11.03
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Abstract

The choice of threshold is an important in the compression algorithms. It plays a major role in the removal of coefficients which are not preserved the important features. In this paper two threshold method, hard threshold(HTH) and soft threshold(STH) are applied to the suggested wavelet based compression algorithm of power quality signal and compared the compression ratio and NMSE. The simulation results show that STH is bottom than HTH.

Keywords