703 適応IIRアルゴリズムによって空間の固有値情報を考慮する能動的音響制御(能動的騒音制御,OS-5 サイレント工学,総合テーマ「伝統を,未来へ!」)

概要

論文の詳細を見る
On active noise control in 3-dimensional acoustic field, a control effect becomes worse when an evaluation point moves. Against this problem, we proposed control with filter map. Effectiveness of this algorithm was shown by simulations and experiments. However, this method needs large memory for accumulating FIR filters. Against the problem, adaptive algorithm is proposed. In the algorithm, IIR filters is used for reduction of memories. The filters are updated by using fast Kalman filter. The experiments is carried out in a box made by gypsum and wood. The result shows that high effectiveness of control and fast convergent speed can be obtained with little memory by proposed algorithm.
一般社団法人日本機械学会の論文
2010-09-14