A New Initialization Method for Frequency-Domain Blind Source Separation Algorithms

被引：5
作者：
Clark, Felipe S. P. [1 ,2 ]
Petraglia, Mariane R. [1 ,2 ]
Haddad, Diego B. [2 ,3 ]
机构：
[1] Univ Fed Rio de Janeiro, Dept Elect Engn POLI, BR-21945970 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Program Elect Engn COPPE, BR-21945970 Rio De Janeiro, Brazil
[3] CEFET, Rio De Janeiro, Brazil
来源：
IEEE SIGNAL PROCESSING LETTERS | 2011年 / 18卷 / 06期
关键词：
Blind source separation (BSS); convolutive mixtures; clustering; direction of arrival; MIXTURES;
D O I：
10.1109/LSP.2011.2135851
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Frequency-domain blind source separation (BSS) techniques have been proposed with the objective of increasing the speed and/or reducing the computational complexity of conventional algorithms, mainly for applications that involve large convolutive mixture filters. In this letter, we present a new initialization method for frequency-domain BSS algorithms employing estimates of the directions of arrival and time-frequency masking, that outperforms the classical pre-whitening initialization technique. Performance and convergence time results of the proposed approach are presented using a frequency-domain BSS algorithm that exploits higher-order frequency dependencies, employing real conference room recordings and simulated data.
引用
收藏
页码：343 / 346
页数：4
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