多变量系统的结构辨识是很麻烦的,Guidorzi 提出了一个辨识不变性指标的方法,但必须用矩阵求逆.本文给出一个递推确定结构指标的算法,不需要求行列式的运算,并且一旦确定了子系统结构,随即得到参数估计值,没有重复的运算.所需计算量比 Guidorzi 方法大大减少. Structural identification of multivariable systems is cumbersome, and Guidorzi proposes a method of identifying invariance indices, but must invert the matrix. In this paper, an algorithm for recursively determining the structure index is given, without the need for determinant calculations, and Once the subsystem structure has been determined, the parameter estimates are obtained immediately, with no repetitive calculations, and the amount of computation required is significantly reduced compared to the Guidorzi method.