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针对心脏节律的复杂性以及其产生受多种生理过程的影响，以受迫非线性动力学系统为分析模型，提出一种能较准确反映其内在确定性部分动力学机制的模型构造方法．应用试验数据分析时发现：模型可以产生与心脏节律相似的动力学行为；心脏节律不仅不能解释为线性Ｇａｕｓｓ过程，而且其内在机制具有初始值敏感性质；生理过程的影响（动力噪声）对产生复杂心脏节律具有重要的作用．
In view of the complexity of heart rhythm and its influence on many physiological processes, this paper proposes a model construction method which can more accurately reflect the inherent deterministic dynamics of the dynamic nonlinear dynamics system. Application of experimental data analysis found that: the model can produce dynamic behavior similar to heart rhythm; heart rhythm not only can not be interpreted as a linear Gauss process, and its intrinsic mechanism with the initial value of the sensitive nature of the impact of physiological processes (power noise) to produce complex Heart rhythm has an important role.