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离散心磁信号连续化处理的研究
The Study of Discrete Signal Process of the Magnetic Field of the Heart
【摘要】 心磁仪是对心脏疾病进行辅助诊断的新型医疗检测设备。本文阐述了对测量的心脏磁场离散信号连续化逼近的要求,研究了几种工程上常用的逼近方法,并比较了它们的误差及曲线光滑度。采用自然三次样条插值对离散心磁信号进行插值处理,实际应用于心磁图绘制效果较好。
【Abstract】 The magnetocardiography (MCG) is a new medical measurement device for diagnosing the heart diseases.This paper shows us the functional approximation for discrete signals and compares it with common method in respect oferror and continuum. Then the cubic spline interpolation is used for processing discrete heart signals.
【关键词】 样条插值;
离散心磁信号;
心磁图;
【Key words】 Cubic spline; magnetic field signals of the heart; magnetocardiogram (MCG);
【Key words】 Cubic spline; magnetic field signals of the heart; magnetocardiogram (MCG);
- 【文献出处】 现代科学仪器 ,Modern Scientific Instruments , 编辑部邮箱 ,2004年06期
- 【分类号】TH776
- 【被引频次】1
- 【下载频次】95