A new approach for analysis and synthesis of time-varying systems

In this paper new techniques are developed for the analysis of linear time-varying (LTV) systems. These lead to a formally simple treatment of robust control problems for LTV systems, allowing methods more usually restricted to time invariant systems to be employed in the time-varying case. As an illustration of this methodology, the so-called H/sub /spl infin// synthesis problem is solved for LTV systems.