共被期刊论文引用了2次
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| 1 | 利用LabVIEW和国产模入卡实现信号的采集与分析显示文摘 介绍通过调用动态连接库,在LabVIEW环境下,利用国产模入卡KPCI-814实现数据采集的方法.利用混有噪声的模拟信号,采用LabVIEW自带工具包实现了信号的数字滤波与频谱分析.系统将为超导量子干涉器(SQUID)在弱磁场测量中的应用提供良好的信号采集、处理与分析手段. | 丁红胜 白世武 孙景春 林森 | 2005 | 测试技术学报2005，19，2： | 7 |
| 2 | Characteristics of magnetocardiography and electrocardiography in the time-frequency domain显示文摘As the carriers of electromagnetic information about the cardiac system,both magnetocardiography(MCG) and electrocardiography(ECG) are non-stationary signals(NSS).The essential and crucial features of NSS are the local time-frequency characteristics(LTFCH).Under the constraint of the uncertainty principle in the time-frequency domain(TFD),the LTFCH of those non-stationary signals can be determined by evolutionary spectrum analysis(ESA).In this paper,by analyzing the QRS complexes of both MCG and ECG data from healthy volunteers,we have derived some characteristic parameters(CHPs) in the TFD,such as the quality factor(Q) and center frequency(fz).According to the experiment results,we believe that there are threshold ranges of Q and fz values in the dynamic behavior of the cardiac system for healthy projects.If the CHPs are in the proper ranges,the cardiac system is in a normal condition and homeostasis can be self-correcting.In contrast,if the values of the CHPs are less than the proper ranges,the homeostasis of the cardiac system is lost and some cardiac diseases may result.The assumption of the threshold ranges is verified by sample data from different cardiac diseases,and the results support the assumption.The CHPs are not only a kind of new reference criterion for ECG in clinical diagnosis,but also afford a technological route for the application of MCGs in cardiology. | LIU XinYuan PEI LiuQing ZHANG SuMing WANG Yin DAI YuanDong | 2011 | Chinese Science Bulletin2011，56，8： | 1 |
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