Transformation of time-variable multivariableinput systems to a canonical form

The problem of transforming a multivariableinput time-varia variable system to a canonical form is considered in this correspondence. The necessary and sufficient condition for the existence of the nonsingular transformation is stated and proved. The canonical form, when restricted to time-invariant systems, is the same as the one given in [3]. The advantages of the present method over [3] are explained. Copyright © 1971 by The Institute of Electrical and Electronics Engineers, Inc.