Automatic tap assignment in sub-band adaptive filter

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概要

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• An automatic tap assignment method in subband adaptive filter is proposed in this letter. The number of taps of the adaptive filter in each band is controlled by the mean-squared error. The numbers of taps increase in the bands which have large errors, while they decrease in the bands having small errors, until residual errors in all the bands become the same. In this way, the number of taps in a band is roughly proportional to the length of the impulse response of the unknown system in this band. The convergence rate and the residual error are improved, in comparison with existing uniform tap assignment. Effectiveness of the proposed method has been confirmed through computer simulation.

• 社団法人電子情報通信学会の論文
• 1993-07-25

著者

• Ma Zhiqiang

  Faculty Of Technology Kanazawa University

• Nakayama Kenji

  Faculty Of Engineering Kanazawa University

• Sugiyama Akihiko

  C&ampc Systems Research Laboratories Nec Corporation

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• Numerical performances of recursive least squares and predictor based least squares: A comparative study
• Automatic tap assignment in sub-band adaptive filter
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• Optimum order assignment on numerator and denominator for IIR adaptive filters adjusted by equation error

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