应用绝对能观性的概念可以对线性控制系统的规范结构赋于新的解释。文中指出,规范结构由四部分组成,即绝对能观但不能控;绝对能控但不能观;绝对能观与能控;绝对不能观不能控。应用我们引入的方法,规范结构可以用矩阵的初等变换来实现。 Applying the concept of absolute observability can give new explanations to the normative structure of linear control systems. The article pointed out that the normative structure consists of four parts, that is, absolute but not control; absolute control but not the concept of absolute energy and control; absolutely can not ignore the concept can not control. Applying the method we introduced, the canonical structure can be realized by the elementary transformation of the matrix.