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本文讨论多输入多输出(MIMO)线性离散系统的一种简化测辨方法。针对一个具有可加噪声的一般差分方程模型结构,提出了重复单输入单输出(SISO)极大似然函数测辨方法,以测辨 MIMO 系统的各个参数。计算机模拟及工业数据应用均表明此法是可行的和有效的。由于此法此较简单,因而能在小型计算机上实现。
This article discusses a simplified method of determining multiple linear input-output (MIMO) linear discrete systems. For a model structure of general difference equation with additive noise, a method to determine maximum likelihood function of single input single output (SISO) is proposed to measure the parameters of MIMO system. Computer simulation and industrial data applications show that this method is feasible and effective. Because this method is simpler, it can be implemented on a small computer.