中文说明：一个具有车辆参数的三自由度模型首先被搭建，然后根据对Carsim输出的实时仿真数据进行扩展卡尔曼滤波数据处理，随后可以用于数据分析以及后续的运载模型建立，分析之后的数据平滑度较好
English Description：
A three degree of freedom model with vehicle parameters is first built, and then extended Kalman filter data processing is carried out according to the real-time simulation data output by CarSim, which can be used for data analysis and subsequent transportation model establishment, and the data smoothness after analysis is better