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Contrast Functions for Convolutive ICA of Complex-Valued Linear Processes
Luo Yihan; Fu Chengyu
Pages3789-3793
2009
Language英语
Indexed ByEi
Subtype会议论文
AbstractComplex ICA for convolutive mixtures is a hot subject but is far from theoretically complete. In this paper, contrast functions for convolutive ICA of complex-valued processes, especially circular complex-valued linear processes, are studied and formulated in a general setting. The superadditive functional of class II in complex domain is defined and used to construct the contrast functions for convolutive ICA of circular complex-valued processes. It is also introduced how to construct the superadditive functional of class II for circular complex random variables, and an example is shown based on quadratic entropy. Finally, relevant issues are discussed and analyzed. Because of the lack of the theory of convolutive ICA in complex domain, this paper fills in the blank and indicates the way to design specific algorithms to solve this difficult problem.; Complex ICA for convolutive mixtures is a hot subject but is far from theoretically complete. In this paper, contrast functions for convolutive ICA of complex-valued processes, especially circular complex-valued linear processes, are studied and formulated in a general setting. The superadditive functional of class II in complex domain is defined and used to construct the contrast functions for convolutive ICA of circular complex-valued processes. It is also introduced how to construct the superadditive functional of class II for circular complex random variables, and an example is shown based on quadratic entropy. Finally, relevant issues are discussed and analyzed. Because of the lack of the theory of convolutive ICA in complex domain, this paper fills in the blank and indicates the way to design specific algorithms to solve this difficult problem.
Conference Name2nd International Congress on Image and Signal Processing (CISP'09)
Conference Date2009
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7370
Collection光电工程总体研究室(一室)
Corresponding AuthorLuo Yihan
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Luo Yihan,Fu Chengyu. Contrast Functions for Convolutive ICA of Complex-Valued Linear Processes[C],2009:3789-3793.
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