线性混合系统的可观性分析  

Observability analysis of linear hybrid systems

作　　者：莫以为[1] 萧德云[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《控制与决策》2004年第12期1349-1353,共5页Control and Decision

基　　金：国家863计划资助项目(2002AA412510;2002AA412420).

摘　　要：线性混合系统的控制输入(包括离散控制和连续控制)会影响混合系统的状态可观性.混合系统的可观性包括初始的离散状态和连续状态,以及离散状态的切换时间.对此,分析了系统的控制输入对线性混合系统状态(主要是离散状态)的影响,并论述这将有助于改善某些线性混合系统状态的可观性.通过分析给出了在这种情形下比较宽松的线性混合系统状态可观性条件及其秩检验条件,并给出说明性示例.The observability of linear hybrid system may be affected by control inputs, which include discrete and continuous control inputs. The observability of hybrid system involves initial discrete states, continuous states and discrete state switched time. The control inputs effect on system states (mainly effect on discrete states) are analyzed. The switching of discrete states may help to improve the observability of some linear hybrid system which is unobservable before discrete switch. And the weaker condition of hybrid system observability and rank test rules are given. An illustrative example is given at last.

关 键 词：线性混合系统 可观性 控制输入 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]