Departmental Bulletin Paper 入力信号の前処理を必要としないPSO に基づくマルチチャネルエコーキャンセラの開発(学内特別研究および国外研修)--(学内特別研究費報告書)

木許, 雅則  ,  Masanori, Kimoto

A specific problem of multi-channel acoustic echo canceller is mis-adjustment of coefficient vector. As a solution to this problem, a method using PSO has been proposed. However, with this method, sufficient estimation accuracy is not obtained for practical use. In this report, we propose a new adaptive echo-canceling algorithm based on the epsilon PSO. It shows that the coefficient convergence accuracy of the proposed method is improved about 4dB as compared with the conventional one.

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