摘要
独立分量分析(ICA)是90年代中期发展起来的一种统计信号处理的新技术,其在盲源信号分离中越来越显示其魅力,但在实际应用中必须考虑线性混合矩阵的时变性问题。同时,由于ICA输出结果在排序上的不确定性,使各段数据分离结果之间没有同一的对应关系,因此需要通过“试听”才能完成各数据分离结果的前后连接.这是一项烦琐的工作,尤其在声源比较多的情况下,工作量非常大。针对这些问题,文中提出一种将小波变换和ICA结合的方法。
As a new technology in statistic signal processing developed in the middle of 1990s,ICA has shownits energetic us- ages in BSS.However,the time-dependence of linear combination matrix in practical application should betaken into account. Meanwhile,as a result of the uncertainty of array order for ICA output results,there exists no same correspondence among the data results seperated during varieties of time intervals,and only by”Test listening”can the date results seperated be done with their connection,which appears to be acomplicated task,especially with the problem mentioned above,the theme details a method of combindting ICA with
出处
《电子测量技术》
2004年第5期15-16,共2页
Electronic Measurement Technology
