中文说明：部分实现了追踪测速迭代松弛算法，双向PCS控制仿真，有较好的参考价值，重要参数的提取，进行逐步线性回归，包括脚本文件和函数文件形式。
English Description：
Part of the implementation of the tracking speed iterative relaxation algorithm, two-way PCS control simulation, there is a good reference value, extraction of important parameters, the gradual linear regression, including the script file and function file form.