一、概述现代控制理论已经在诸如导弹、空间飞行等一系列领域中得到了成功地应用。但是另外一些工业过程却往往难以来自动控制。这种困难往往是来自难以对具体某一过程建立数学模型,过程的非线性、时变特性或者难以测量等等。而这种难以自动控制的过程由人来控制却往往工作得很好。 I. Overview Modern control theory has been successfully applied in a series of fields such as missiles and space flight. However, other industrial processes are often difficult to control automatically. This difficulty often comes from the difficulty of establishing a mathematical model of a specific process, the process of nonlinear, time-varying features or difficult to measure and so on. This hard-to-auto-control process tends to work well with people.