摘要
研究快速定点独立分量分析方法在母胎心电信号分离中的应用。采用此算法,在胎儿心电信号与母体心电信号可以视为相互独立的信号源的前提下,对来源于同一孕妇的观测信号进行独立分量分离。快速定点独立分量算法可以有效地分离出单个独立分量,得到的胎儿心电信号(FECG)较理想。采用独立分量分析方法,实现母胎心电信号分离,是一种值得尝试的信号处理方法。
To study the appliance of the fast fixed- point independent component analysis (Fast ICA) in extracting fetal electrocardiogram (FECG). Fast ICA was used to distinguish the FECG and maternal electrocardiogram(MECG), which was based on statistical independence. FECG could be extracted quickly by Fast ICA. It is a new feasible analyzing tool to apply ICA in extracting FECG.
出处
《生物医学工程研究》
2007年第1期37-41,共5页
Journal Of Biomedical Engineering Research
关键词
独立分量分析
胎儿心电信号
母体心电信号
最小均方算法
盲源分离
Independent component analysis (ICA)
Fetal electrocardiogram (FECG)
Maternal electrocardiogram (MECG)
Least mean square(LMS)
Blind signal separation(BSS)