利用特殊的严格系统等价变换和适当的新型广义Lyapunov方程,给出了离散奇异系统稳定和广义Lyapunov方程有特殊对称解的一个充要条件.进一步,结合无脉冲模判定条件,证明了原离散奇异系统稳定、无脉冲模和对应的广义Lyapunov方程有特定解的一个新的充要条件.
In this paper,a necessary and sufficient condition on stability for discrete-time singular systems is given mainly by applying special restricted systems equivalent transformation and a appropriate generalized Lyapunov equation. Furthermore, by combining a criteria for impulse freedom, a new necessary and sufficient condition on stability and impulse freedom will be derived for discrete-time singular systems.