1、 心电信号心电信号系统系统的建模与仿真的建模与仿真 modeling and simulation of ECG system 学 院（系）： 电信学部 专 业： 生物医学工程 心电信号系统的建模与仿真 - I - 摘 要 随着社会的进步和经济的发展,人们也更关注自身的健康。 心血管疾病是威胁人们的 健康的高发病,并且患者在症状出现后很快就死亡。 对心血管疾病的诊断就很重要。 因此 对心电信号的研究也是有着重大意义。 本文使用一个基于三个相互关联的普通微分方程的心电动力学模型来仿真真实的 心电信号并对该模型进行分析。该模型能在三维坐标中生成一个心电周期的心电向量。 通过使用和两种工具对其进行仿
2、真和分析。 分别改变模型中的各参 数，观察得到的心电信号波形的变化。经过分析，得到的仿真心电信号的形态会随着模 型中特定参数的变化而在相应的部位发生变化。因此，可以用该模型来仿真各种不同特 性的心电信号（例如正常的心电信号，各种疾病的心电信号以及不同心电导联下的心电 信号）。 该模型能够提供不同特性的心电信号，其可能对评估不同的心电信号处理的方法的 可靠性有所帮助。 另外该模型能够通过改变参数而得到不同特性的心电信号， 其能方便， 快捷的得到心电信号研究中所需要的信号。 关键词：心电信号，动力学模型，PQRST 形态，仿真心电信号。 心电信号系统的建模与仿真 - II - modeling a
3、nd simulation of ECG system Abstract With the progress of the society and the development of economy, people also pay more attention to their healthThe high incidence of cardiovascular disease is the threat to peoples health, and the patient died soon after symptom onsetthe diagnosis of cardiovascul
4、ar disease is very important. So the study of ECG signal is also significant. This article uses a three interrelated ordinary differential equation based on ECG dynamic model to simulate the real ECG signal and analyze the model. The model can be generated an ECG cycle vector in the 3 d coordinate.
5、By using MATLAB and XPP two tools for simulation and analysis。Change the parameters in the model, respectively, observed the change of ECG signal waveform. Through the analysis, the simulation of ECG signal form may change along with the changes of the specific parameters in the model in the corresp
6、onding position. Therefore, the model can be used to simulate various features of ECG signal (such as normal ECG signals, a variety of diseases of ECG signals and the ECG signal under different heart conductance league). This model can provide ECG signals with different characteristics, it may be may be employed to assess the reliability of ECG signal processing techniques. In addition, this model can get ECG signals with different characteristics by changing the
