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Volume 31 Issue 11
Dec.  2010
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Ni Jin-gen, Shang Hui-liang, Li Feng. Step-Size Control for the Normalized Subband Adaptive Filter[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2606-2609. doi: 10.3724/SP.J.1146.2008.01708
Citation: Ni Jin-gen, Shang Hui-liang, Li Feng. Step-Size Control for the Normalized Subband Adaptive Filter[J]. Journal of Electronics & Information Technology, 2009, 31(11): 2606-2609. doi: 10.3724/SP.J.1146.2008.01708

Step-Size Control for the Normalized Subband Adaptive Filter

doi: 10.3724/SP.J.1146.2008.01708 cstr: 32379.14.SP.J.1146.2008.01708
  • Received Date: 2008-12-15
  • Rev Recd Date: 2009-05-18
  • Publish Date: 2009-11-19
  • Fixed step-size Subband Adaptive Filters (SAFs) must carry out a trade-off between fast convergence rate and low steady-state misadjustment. According to the functional relationship between the Mean-Square Deviation (MSD) of the coefficient vector of the adaptive filter and step-size, this paper proposes a step-size control algorithm to address the problem above, which is derived by the largest decrease method of the MSD of the coefficient vector of the adaptive filter for each iterative update. This algorithm can obtain both fast convergence rate and low steady-state misadjustment. Experimental results verify the validity of the proposed method.
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