多变量线性系统的递推辨识算法
A Recursive Identification Algorithm for Linear Multivariable Systems
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摘要: 变量系统的结构辨识是很麻烦的,Guidorzi[1]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[1]方法 大大减少.Abstract: Structural identification of a multivariable system is very troublesome. Guidorzi[1] has proposed a method for identification of a set of invariant indices, but in which the inverse of matrices has to be evaluated. In this paper a recursive algorithm for deter minted structural indices is described. In the whole algorithm it is not necessary to evaluate the value of determinant. Once the structure of subsystem is determined, we can obtain the estimation of parameters without repeated calculations and superfluous tasks. So the amount of calculation has reduced greatly.
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