前馈形离散系统的镇定

Stabilization of Feed forward Discrete-Time Systems

为前馈形离散系统的镇定发展了饱和函数形的状态反馈 .证明了对应的临界稳定线性系统在该类饱和控制下 ,关于执行机构干扰是输入 -状态稳定的 ;从关联系统的角度出发 ,采用小增益定理的思想对前馈形离散系统设计了饱和控制 .设计的本质在于保证系统的状态最终进入坐标系原点的小邻域 。

The paperdeveloped a saturated state feedback forstabilization of feedforward discrete- time sys- tem,whose linear approximate system is critically stable.It was proved,for the relevant linear system, that it is input- to- state stable about the inputs,actuator disturbances.After viewing the feedforward sys- tem as an interconnected system,it applied the small- gain theorem to choose parameters of the saturated control.The essence of design is to ensure trajectories of states ultimately entering into some neighbor- hood of the coordinate origin,and the convergence of states is evident later on.