说明：  高志强老师在2003年发表的基于带宽参数的控制器参数整定方法，里面介绍的LADRC（线性自抗扰控制器）例子对应的matlab代码与原文章，方便读者阅读与验证，减轻读者编程负担。
(Teacher Gao Zhiqiang, published in 2003 based on bandwidth parameter of the controller parameter tuning method, which describes the LADRC (linear auto disturbance rejection controller example corresponding matlab code and the original article, convenient readers reading and verification, reduce the burden of programming readers.)