中文说明：
采用一种不完全的微分算法，被控对象为时滞系统。对象的输出端加的随机信号，幅值0.01.采样时间是20ms。
English Description：
An incomplete differential algorithm is adopted, and the controlled object is a time-delay system. The random signal added at the output of the object, with amplitude of 0.01 The sampling time is 20ms