中文说明： Matlab实现界面友好，通过matlab代码，仿真图是速度、距离、幅度三维图像，进行逐步线性回归，数学方法是部分子空间法，采用热核构造权重。
English Description：
MATLAB has a friendly interface. Through MATLAB code, the simulation diagram is a three-dimensional image of speed, distance and amplitude, and the stepwise linear regression is carried out. The mathematical method is partial subspace method, and the weight is constructed by hot core.