x(t), in which multiple multidimensional signals are mixed, wherein the nonlinear function 21 is operated on an input observed signal x(t) and an estimated separation matrix W(t−1) estimated at a previous cycle. Then, an error signal e(t) is calculated 22 based on y(t) formed by this nonlinear function 21, the estimated separation matrix W(t−1) estimated at the previous cycle, and the observed signal x(t) at that time. Then, based on the calculated error signal e(t), the update of the separation matrix W(t) at that time is performed 23 such that consideration weight is increased when estimation errors are large using the cost function having a monotonously increasing characteristic."/>
公开/公告号US6944579B2
专利类型
公开/公告日2005-09-13
原文格式PDF
申请/专利权人 JUNYA SHIMIZU;
申请/专利号US20010024611
发明设计人 JUNYA SHIMIZU;
申请日2001-10-29
分类号G06F15/00;H03F1/26;H04B15/00;
国家 US
入库时间 2022-08-21 22:20:30