周波数選択ＬＭＳ適応フィルタのＬＭＩ設計とアクティブ騒音制御への応用

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  • LMI Design of Frequency Selective LMS Adaptive Filters and Its Application to Active Noise Control
  • シュウハスウ センタク LMS テキオウ フィルタ ノ LMI セッケイ ト アクティブ ソウオン セイギョ エ ノ オウヨウ

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Recently, a frequency selective adaptive filter design method for active noise control has been proposed based on the so-called least mean square algorithm. However, this method does not sufficiently exploit the degree of freedom of the step parameter of the recursive rule in the case where a priori information on an uncertain plant is available. This paper proposes a design method of the step parameter such that noise cancellation is guaranteed against the plant uncertainty. The design problem of the step parameter is reduced to an optimization problem involving linear matrix inequalities and is efficiently solvable. Experimental results are provided to illustrate the effectiveness of the proposed method.

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