中国组织工程研究2012，Vol.16Issue(26)：4877-4880,4.DOI:10.3969/j.issn.1673-8225.2012.26.025
基于分块扩展Infomax算法的胎儿心电分离
Block-extend Infomax algorithms in fetal electrocardiogram extraction
苟梅梅 1黄华1
作者信息
- 1. 四川大学电气信息学院,四川省成都市,610065
- 折叠
摘要
Abstract
BACKGROUND: Fetal electrocardiogram is an important parameter in perinatal period for fetus growing. How to extract the fetal electrocardiogram from maternal electrocardiogram quickly and effectively has become an important research topic.OBJECTIVE: To use the block-extend Infomax algorithm for the separation of the fetal electrocardiogram quickly and effectively.METHODS: Block-extened Infomax and statistics into four ranks were combined to study the relate rules which make the non-cross element of weight covariance matrix minimum, and improve the astringency of arithmetic.RESULTS AND CONCLUSION: Extended infomax algorithm could achieve the separation of super-Gaussian and sub-Gaussian signal. The convergence rate of the algorithm presented in the paper was faster than that of the extended infomax algorithm. Extended Infomax algorithm could effectively extract the fetal electrocardiogram. The amount of the data treated by the block-extend Infomax algorithm was less than that treated by the extended infomax algorithm, and the iteration number of the block-extend Infomax algorithm was smaller than that of the extended infomax algorithm, so the fetal electrocardiogram could be separated quickly and effectively.关键词
胎儿心电/盲分离/扩展Infomax算法/四阶统计/数字化医学分类
医药卫生引用本文复制引用
苟梅梅,黄华..基于分块扩展Infomax算法的胎儿心电分离[J].中国组织工程研究,2012,16(26):4877-4880,4.
