I. Introduction
Discrete time switched affine systems (SASs) are an important class of hybrid systems involving multiple operational modes where each mode is governed by a distinct set of affine difference equations. The switching between different operational modes takes place through internally generated or externally applied control signals. Switched affine systems are used to model complex engineering systems in the process control industry [1], power electronics applications [2], automotive systems [3], etc. The control design for such systems poses a challenging task owing to the simultaneous determination of the operational mode and actuator signals.