A new blind source separation algorithm for convolved mixtures of speech singals is developed with consideration of different delayed multi-path reflections.Based on the sparseness property of speech signals,the proposed algorithm extracted time-delay and amplitude coefficient candidates through the contrast analysis of two speech spectrograms.Motivated by maximum likelihood estimation,we defined a reliablility function constructed from the parameter candidates.The reliability analysis histogram was shown t...
【更新日期】
2006-08-18
【分类号】
TN912.3
【正文快照】
1引言信号盲分离[1~3](B lind Source Separation)是在缺乏传递信道和输入信源先验知识的前提下,从多个实际的混合信号出发,通过分析这些信号从而提取出原始组成信号的技术.它在通讯、语音[4]和医学信号处理[5]方面具有广泛的应用.自从20世纪80年代法国人Herault J.和Jutten C.
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