二自由度控制系统的多项式矩阵描述与完全表征

The Polynomial Matrix Description and Complete Characterization for Two - Degree - of -Freedom Control Systems

首先给出了组合系统的二自由度控制系统的多项式矩阵描述，在此基础上，利用子系统多项式矩阵分式表示，得到了二自由度控制系统完全表征的充分必要条件。所给出的结论扩展了文献［１，２］的结果。

s a composite system, the polynomial matrix description and complete characterization for two-degree-of-freedom control systems are discussed in this paper. By using the polynomial matrix-fraction description of the subsystems, the sufficient and necessary conditions for the complete characterization of the two-degree -of-freedom control systems are presented. The conclusions in this paper extend the results in referenced[1, 2].