2004 年 40 巻 12 号 p. 1246-1248
This paper is concerned with high gain output feedback of nonlinear affine system with multi input and multi output. It is assumed that the system has the relative degree one and its linearized system is the minimum phase. The high gain feedback theorem is proved intelligibly based on the Lyapunov theorem. At a time its proof explains how to choose the gain values for output feedback control.