Enhanced mixed L/sub 2/ - L/sub /spl infin///H/sub /spl infin// filtering for continuous-time uncertain systems

Abstract

New LMI criteria for L₂ - L_infin and H_infin performances of continuous-time uncertain systems are proposed, which keep the Lyapunov matrices out of any product with the system matrices. When used in robust mixed L₂ - L_infin and filtering, the design conservatism is reduced since the restriction is removed that both L₂ - L_infin and H_infin performances are enforced by a single closed-loop Lyapunov matrix