To characterize the deterministic dynamics in heart rhythm, the unstable periodic orbit analysis were the RR interval time series of healthy young men.

为刻划心脏节律存在的确定性动力学特征，运用不稳定周期轨道分析方法对健康青年人的RR间期时间序列数据进行分析。

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Through the method of combining a single beat ECG template database and a RR interval simulator, a variety of ECG signal with freely pre-set features could be simulated.

通过将单周期心电信号模板库与RR间期模拟信号结合，本研究实现了种类丰富，逼真度高，可自由调节心率特性的心电信号的模拟。

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AIM To investigate the method of decreasing the noise disturbance in electrocardiosignal and improve the test precision of RR interval in heart rate variability HRV signals.

目的：探讨改善心电信号噪声干扰的方法，提高对心率变异信号中的RR间期检测精度。

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