摘要
在生物医学信号处理领域,独立分量分析(PCA)和主分量分析(ICA)是两种广泛应用的方法。但是,这两种方法各有其优缺点。提出了一种新颖的方法,将ICA和PCA相结合,通过求相关的技术,分别取ICA和PCA方法的优点。将该方法应用于从母体腹部测得的多通道信号中提取胎儿心电信号的实验,得到令人满意的结果。研究结果表明,这种结合ICA和PCA的方法能够比较准确地分离出所需要的胎儿心电信号,进而可以对胎儿心电进行监护,因此在临床上具有一定的实用价值。
In the field of biomedical signal processing, independent component analysis （ICA） and principal component analysis （PCA） are two widely - used methods, But they both have their advantages and disadvantages, In this paper, a novel method of combining PCA and ICA is proposed. This method is applied to the fetal ECG extraction from the multi- channel signals getting from the mother＇s abdomen, The experiment results are satisfying. According to the analysis and experiment results, the method can extract the fetal ECG accurately, So the new method has the practicability in the application of clinic.
出处
《计算机技术与发展》
2007年第8期223-225,229,共4页
Computer Technology and Development
基金
国家自然科学基金资助项目(60271024)
安徽省人才基金资助项目(2004Z028)
关键词
主分量分析
独立分量分析
胎儿心电
相关
principal component analysis
independentcomponent analysis
fetal ECG（FECG）
correlation
