Separability of Linear Continuous Fading Memory Systems
线性连续衰退记忆系统的可分性

Motivated by problems from approximate modeling and identification,we con- sider various classes of linear continuous time-varying bounded input-bounded output(BIBO) stable fading memory systems.These include fading memory systems,in general,almost pe- riodic systems,asymptotically periodic systems and asymptotically strong periodic systems. And we find that asymptotically strong periodic systems are the only separable subspace of LTV systems.