ブラインド信号分離回路の安定制御に関する検討

概要

論文の詳細を見る
The aouthor has proposed the adaptive filter combined with the blind source separation circuit which improve the performance of echo cancelation at presence of speech signal. In this paper, the convergence speed and the statical performance of the separation circuit are presented. Then, a new method are proposed. The method varing the coefficient of updating to get the first convergence and good separation simultaneously. The method use a cumulant of the circuit output to know the convergence of the circuit. The method are compared to the performance of the usual system, The relation between the function form of getting the coefficient and the performance of the separation circuit is studied. Finally, this paper deal with the stable control of update coefficient to get fast convergence.
津山工業高等専門学校の論文
2004-02-27