中文说明：本文件用matlab 语言，对kalman滤波的方法进行仿真，画出来原始曲线，观察值，和跟踪曲线，会对初学者有很大的帮助！
English Description：
This document uses MATLAB language to simulate the Kalman filtering method, draw the original curve, observation value, and tracking curve, which will be of great help to beginners!