An algebraic approach to strong stabilizability of linear nD MIMO systems

Although some necessary conditions for the strong stabilizability of linear multidimensional ( ) multiple-input–multiple-output (MIMO) systems have been available recently, very little is known about sufficient conditions for the same problem. This note presents two sufficient conditions for strong stabilizability of some classes of linear MIMO systems obtained using an algebraic approach. A simple necessary and sufficient condition is also given for the strong stabilizability of a special class of linear MIMO systems. An advantage of the proposed algebraic approach is that a stable stabilizing compensator can be constructed for an plant satisfying the sufficient conditions for the strong stabilizability presented in this note. Illustrative examples are given.