On the SPR Condition in Output Error Estimation Schemes

Abstract

In this paper we will analyze the SPR condition in output error adaptive estimation schemes. An idea of Tomizuka is used to reduce the restrictive nature of the SPR condition, and is strengthened by exploiting certain a priori information on the uncertainty structure of the underlying plant, which is represented by an interval plant description. New results for the analysis of these types of systems are obtained, and are subsequently incorporated in the analysis of the adaptive system.