是小学期课程设计的题目，预报误差法参数辨识-松弛的思想，用于信号特征提取、信号消噪，数据模型归一化，模态振动，计算加权加速度,仿真图是速度、距离、幅度三维图像，插值与拟合，解方程，数据分析，是国外的成品模型。- Is the topic of the elementary school stage curriculum design, Prediction Error Method for Parameter Identification- the idea of relaxation, For feature extraction, signal de-noising, Normalized data model, modal vibration, Weighted acceleration, FIG simulation speed, distance, amplitude three-dimensional image, Interpolation and fitting, solution of equations, data analysis, Foreign model is finished.