Volume 13, Issue 3 (September 2017)                   IJEEE 2017, 13(3): 213-218 | Back to browse issues page

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Shams Esfand Abadi M, Mesgarani H, Khademiyan S M. The Wavelet Transform-Domain LMS Adaptive Filter Algorithm with Variable Step-Size. IJEEE 2017; 13 (3) :213-218
URL: http://ijeee.iust.ac.ir/article-1-1035-en.html
The Wavelet Transform-Domain LMS Adaptive Filter Algorithm with Variable Step-Size
M. Shams Esfand Abadi , H. Mesgarani , S. M. Khademiyan
Abstract:   (5588 Views)

The wavelet transform-domain least-mean square (WTDLMS) algorithm uses the self-orthogonalizing technique to improve the convergence performance of LMS. In WTDLMS algorithm, the trade-off between the steady-state error and the convergence rate is obtained by the fixed step-size. In this paper, the WTDLMS adaptive algorithm with variable step-size (VSS) is established. The step-size in each subfilter changes according to the largest decrease in mean square deviation. The simulation results show that the proposed VSS-WTDLMS has faster convergence rate and lower misadjustment than ordinary WTDLMS.

Keywords: Adaptive Filter , Wavelet Transform Domain LMS (WTDLMS) , Variable Step-Size , Mean Square Deviation
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Type of Study: Research Paper | Subject: Signal Processing
Received: 2016/12/25 | Revised: 2017/11/04 | Accepted: 2017/07/11
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