한국음향학회지 (The Journal of the Acoustical Society of Korea)

  • 제19권8호
  • /
  • Pages.26-34
  • /
  • 2000
  • /
  • 1225-4428(pISSN)
  • /
  • 2287-3775(eISSN)
한국음향학회 (The Acoustical Society of Korea)
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적응 문턱치 알고리즘을 이용한 충격잡음 제거

Impulse Noise Cancellation Using Adaptive Threshold Algorithm

  • 이진 (삼척대학교 제어계측공학과) ;
  • 박종환 (서울시립대학교 전자.전기공학부) ;
  • 김세동 (두원공과대학 전기과) ;
  • 이영석 (청운대학교 전자공학과) ;
  • 김성환 (서울시립대학교 전자.전기공학부)
  • 발행 : 2000.11.01
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초록

This paper presents a new adaptive impulse noise cancelling technique based on the adaptive nonlinear suppressing function. The proposed "adaptive threshold algorithm (ATA)" is controlled by the normalized power prior input data term, and this adaptive threshold makes the cancelling system highly robust against additive impulse noise. For the performance evaluation, we have tested the proposed algorithm with the observed signals simulated in various impulsive noise environments and real EMG signals. As a result the proposed algorithm shows superior performance of 51.7% to the available techniques in the points of SNR and MSE.

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참고문헌

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