15th Triennial World Congress of the International Federation of Automatic Control
  Barcelona, 21–26 July 2002 
ON THE CONTROL OF LINEAR SYSTEMS HAVING INTERNAL VARIATIONS, PART II–CONTROL
Moisés Bonilla Estrada* Michel Malabre**
* CINVESTAV-IPN, Control Automático. AP 14-740. México
07000, MEXICO. mbonilla@enigma.red.cinvestav.mx.
** IRCCyN, CNRS UMR 6597, B.P. 92101, 44321 NANTES,
Cedex 03, FRANCE. Michel.Malabre@irccyn.ec-nantes.fr.

In this paper we show how to embed the variable internal structure present in square implicit descriptions inside an (A, E, B) invariant subspace contained in the kernel of the output map. Thanks to this embedding, we make unobservable the variable internal structure, obtaining in this way a proper closed loop system with a controllable pre specified structure.
Keywords: implicit systems, linear systems, geometric approach
Session slot T-Tu-A18: Descriptor and implicit systems/Area code 2b : Linear Systems