标题：Lower Bound for Discrete-Time H-infinity Control Performance
作者：Wang, Hongxia; Zhang, Huanshui; Yu, Li
作者机构：[Wang, Hongxia; Yu, Li] Zhejiang Univ Technol, Sch Informat Engn, Hangzhou 310023, Zhejiang, Peoples R China.; [Zhang, Huanshui] Shandong Univ, Sch 更多
会议名称：International Conference on Mechatronics and Control (ICMC)
会议日期：JUL 03-05, 2014
来源：2014 INTERNATIONAL CONFERENCE ON MECHATRONICS AND CONTROL (ICMC)
关键词：H-2 control; H-infinity control; Riccati equation; LQ
摘要：The paper aims to provide an approach to obtain a lower bound of H-infinity control performance in state space. It is not involved Riccati equation and only concerns with the solution to the standard H-2 Riccati equation. As a consequence, the approach can help one to narrow the optimal H-infinity performance search via bisection method to a smaller range and considerably reduce the search cost. In addition, the approach enables us to have an insight into not only the link and difference between the optimal performance and the H-infinity performance including the optimal control and H-infinity control performance, the optimal estimation and the H-infinity estimation, but also the impact of the multiple-channel disturbances or previewable disturbance on the H-infinity control performance.