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Superior step-size theorem and its application

Parallel variable step-size LMS filters algorithm

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Abstract

With independence assumption, this paper proposes and proves the superior step-size theorem on least mean square (LMS) algorithm, from the view of minimizing mean squared error (MSE). Following the theorem we construct a parallel variable step-size LMS filters algorithm. The theoretical model of the proposed algorithm is analyzed in detail. Simulations show the proposed theoretical model is quite close to the optimal variable step-size LMS (OVS-LMS) model. The experimental learning curves of the proposed algorithm also show the fastest convergence and fine tracking performance. The proposed algorithm is therefore a good realization of the OVS-LMS model.

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Authors and Affiliations

  1. State Key Laboratory on Microwave and Digital Communications, Department of Electronics Engineering, Tsinghua University, 100084, Beijing, China

    Gu Yuantao, Tang Kun & Cui Huijuan

Authors
  1. Gu Yuantao
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  2. Tang Kun
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  3. Cui Huijuan
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Corresponding author

Correspondence to Gu Yuantao.

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Gu, Y., Tang, K. & Cui, H. Superior step-size theorem and its application. Sci China Ser F 47, 151–160 (2004). https://doi.org/10.1360/02yf0108

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  • DOI: https://doi.org/10.1360/02yf0108

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