Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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A Variable Step-size Algorithm for Constant-norm Equation-error Adaptive IIR Filters

Constant-norm Equation-error 적응 IIR 필터를 위한 가변 Step size 알고리즘

  • Kong, Se-Jin (Department of Electronic and Electrical Engineering Pohang University of Science and Technology) ;
  • Shin, Hyun-Chool (Department of Electronic and Electrical Engineering Pohang University of Science and Technology) ;
  • Song, Woo-Jin (Department of Electronic and Electrical Engineering Pohang University of Science and Technology)
  • Published : 2001.09.01
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Abstract

Recently a constant-norm constraint equation-error method was proposed to solve the bias problem in adaptive IIR filtering. However, the method adopts a fixed step-size and thus results in slow convergence for a small step-size and significant misadjustment error for a largestep-size. In this paper, we propose a variable step-size (VSS) algorithm that greatly improves convergence properties of the constant-norm constraint equation-error method. The analysis and the simulation results show that the proposed method indeed achieves both fast convergence and small misadjustment error.

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