Article ID Journal Published Year Pages File Type
718210 IFAC Proceedings Volumes 2009 6 Pages PDF
Abstract

In this paper we use retrospective cost optimization to identify linear fractional transformations (LFTs). This method uses an adaptive controller in feedback with a known system model. The goal is to identify the feedback portion of the LFT by adapting the controller with a retrospective cost. We demonstrate this method on numerical examples of increasing complexity, ranging from linear examples with unknown feedback terms to nonlinear examples. Finally, we examine methods for improving the retrospective cost optimization performance.

Related Topics
Physical Sciences and Engineering Engineering Computational Mechanics