A Blind Separation Algorithm for Convolutive Mixture of Nonstationary Sources
نویسندگان
چکیده
A blind separation algorithm utilizing nonstationarity of sources is proposed. It is suitable particularly for separation of such strongly nonstationary signals as voices. The original version of the algorithm was proposed by one of the authors. The present version has made two improvements. First, it is extended to be able to deal with not only instantaneous mixture but also convolutive mixture of sources. Second, a new multiplier is introduced to suppress instability inherent in the original algorithm. Some experiments show a remarkably highspeed convergence. Key-Words: blind source separation, independent component analysis, nonstationary signal, convolutive mixture, voice
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تاریخ انتشار 2004