一类基于观测器切换的输出反馈镇定

A Class of Observer Switched-Based Output Feedback Stabilization

考虑一类线性时不变系统,假设系统存在有限个备选的观测器,每个观测器的增益是已知的.在任一观测器均不能保证误差系统渐近稳定的情况下,通过这有限个观测器间按照一定的切换策略进行切换,使误差系统达到渐近稳定.基于所设计的观测器可以设计控制器,使整个闭环系统渐近稳定.最后的仿真实例说明了设计方法的正确性.

Considered a class of LTI（linear time invariable） system, suplmse that there exist finite candidate state observers and the gain matrices of state observers are known, though none of the individual state observers can make the error system stabilizable, through switching among the candidate state observers under a designed switching law can make it. Based on the state observer, a controller can be designed to make the closed-loop system be asymptotically stable. The simulation shows the results are right.