Multirate observer design via singular perturbation theory

Abstract

In this paper multirate observer design is considered via singular perturbation theory. Following a discussion of the design of single-rate observers, i.e. fast- and slow-sampling observers, multirate observer design is developed within the framework of a decomposition-coordination principle. Problems of asymptotic stability and the responses of an error system are investigated, and the relation between single-rate and multirate observers is clarified.