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本文将单输入单输出(SISO)变母带误差(EIV)模型的频域最坏情况辨识方法推广应用于多输入多输出(MIMO)情况.类似于SISO情况,多输入多输出变量带误差(MIMO EIV)模型的辨识模型集合由估计的系统名义模型及其最坏情况误差界描述.所估计的系统名义模型表征为正规右图符号,其最坏情况误差界具有可能的更少保守性,可利用EIV模型的先验信息和后验信息由v-gap度量量化得到.因此,这种模型集合非常适合于后期利用Vinnicombe提出的H。。回路成形法设计鲁棒控制器.最后,利用一数值仿真实例验证所提出辨识方法的有效性.
In this paper, the worst-case frequency domain identification method of single-input single-output (SISO) variable-headband error (EIV) model is generalized to multiple input multiple output (MIMO) MIMO EIV) model is described by the estimated nominal model of the system and its worst-case error bounds.The estimated nominal model of the system is characterized by a right-hand right symbol with possibly less conservative of the worst-case error bounds, The prior information and the posterior information which can be used by the EIV model are obtained by the v-gap measurement and quantification. Therefore, this model set is very suitable for the later use of the proposed H. Vinnicombe. . Loop shaping method to design a robust controller.Finally, a numerical example is used to verify the effectiveness of the proposed method.