Input-to-state stabilization of linear systems with positive outputs

This paper considers the problem of stabilization of linear systems for whi ch only the magnitudes of outputs are measured. It is shown that, if a syst em is controllable and observable, then one can find a stabilizing controll er, which is robust with respect to observation noise (in the ISS sense). ( C) 1998 Elsevier Science B.V. All rights reserved.