1998 年 34 巻 1 号 p. 20-26
Loop Shaping Design Procedure (LSDP) is one of the most promising H∞ design procedure. However, LSDP has a weak point such that the so-called central controller has higher order. In this paper, we show that for a single input system which has a structure of mechanical system, there exists a lower order controller by selecting free parameter appropriately and the controller has a structure of functional observer. And we apply our design procedure to the stabilization problem of a two-wheeled vehicle which is a typical unstable mechanical system.