Journal of information and communication convergence engineering

  • 제8권1호
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  • Pages.23-28
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  • 2010
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  • 2234-8255(pISSN)
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  • 2234-8883(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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Convergence Analysis of Noise Robust Modified AP(affine projection) Algorithm

  • 투고 : 2010.01.12
  • 심사 : 2010.01.20
  • 발행 : 2010.02.28
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초록

According to increasing projection order, the AP algorithm bas noise amplification problem in large background noise. This phenomenon degrades the performances of the AP algorithm. In this paper, we analyze convergence characteristic of the AP algorithm and then suggest a noise robust modified AP algorithm for reducing this problem. The proposed algorithm normalizes the update equation to reduce noise amplification of AP algorithm, by adding the multiplication of error power and projection order to auto-covariance matrix of input signal. By computer simulation, we show the improved performance than conventional AP algorithm.

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참고문헌

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