基于DSP的自适应胎儿心电图仪研究  

Research on an Adaptive Fetal Electrocardiograph Based on DSP

作　　者：李智[1] 沈汉聪[1] 莫玮[2] 

机构地区：[1]桂林电子科技大学电子工程学院,桂林541004 [2]中国电子技术标准化研究所,北京100007

出　　处：《生物医学工程学杂志》2008年第2期309-312,共4页Journal of Biomedical Engineering

摘　　要：介绍了一种自适应胎儿心电图仪的研究与实现方法。研制了TMS320LF2407A数字信号处理芯片为核心的嵌入式系统。根据自适应噪声抵消(Adaptive noise cancelling,ANC)原理,研究与实现了自适应噪声抵消软件算法,无创无损提取胎儿心电信号,并通过通讯接口送至上位机实时显示,分析和记录处理结果。实验表明该仪器设计合理,性能良好。This paper introduces the research and realization of an adaptive fetal electrocardiograph （FECG）. We have developed an embedded system which takes the digital signal processor chip TMS320LF2407A as the core. According to the principle of adaptive noise cancelling（ANC）, the ANC software algorithm is studied and realized to extract the FECG by non-invasive means, then the embedded system sends the data to the computer through the communication interface for real-time display, analysis and recording of the processing results. The experiments indicate that the design is reasonable and the instrument owns a good performance.

关 键 词：胎儿心电图 嵌入式系统 自适应噪声抵消 

分 类 号：R714.5[医药卫生—妇产科学] R318.6[医药卫生—临床医学]