OPTIMAL FEEDBACK DESIGN FOR UNCERTAIN SYSTEMS - A TIME-DOMAIN FIXED-POINT APPROACH IN L-INFINITY

This paper considers an alternative to quantitative feedback theory (Q FT), an alternative deriving solely from a time-domain setting in Bana ch space L(infinity) and Providing both a precise, amplitude-oriented design formulation and a general computer-oriented design Procedure. S ystem dynamics, stability, and tracking are characterized as fixed-poi nt operator equations and conditions under which tracking errors satis fy explicit bounds. The design formulation and procedure are illustrat ed by two design examples.