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胎儿心电(Fetal Electrocardiogram,FECG)是通过安置在母体腹部表面电极间接检测到的微弱信号,其中含有各种形式的干扰信号,如何将胎儿心电从强背景干扰中分离出来,具有重要的临床应用价值。独立成分分析(Independent Component Analysis,ICA)是近年发展起来的一种新的盲源分离技术(Blind source separation,BSS)。本文将ICA方法应用于胎儿心电信号的提取,并对胎儿心电的在线提取进行了研究,取得了较好的胎儿心电分离效果。
Fetal electrocardiogram (FECG) is a kind of weak signal which is indirectly detected by placing electrodes on the surface of the abdomen of the maternal body and contains various forms of interference signals. How to separate the fetal ECG from strong background interference has important clinical Value. Independent Component Analysis (ICA) is a new Blind source separation (BSS) developed in recent years. In this paper, ICA method is applied to the extraction of fetal ECG, and fetus ECG on-line extraction was studied, and achieved good results of fetal ECG separation.