中文说明：微分方程组数值解方法，构成不同频率的调制信号，预报误差法参数辨识-松弛的思想，时间序列数据分析中的梅林变换工具，详细画出了时域和频域的相关图，数据模型归一化，模态振动。
English Description：
Differential equations of the numerical solution method, constitutes the different frequency modulation signal, prediction error method for parameter identification - relaxation of thought, analysis of time series data of the Mellin Transform tool, with painting the time domain and frequency domain correlation diagram and data normalization model, modal vibration.