Kybernetika 38 no. 4, 445-456, 2002

Observability and observers for nonlinear systems with time delays

Luis Alejandro Márquez-Martínez, Claude H. Moog and Martín Velasco-Villa


Basic properties on linearization by output injection are investigated in this paper. A special structure is sought which is linear up to a suitable output injection and under a suitable change of coordinates. It is shown how an observer may be designed using theory available for linear time delay systems.