IEEE Transactions on Automatic Control, Vol.48, No.11, 1986-1990, 2003
Finite-dimensional observers for delay systems
A finite-dimensional observer theory is formulated for a class of point delayed systems. The observer is characterized by the fact that it directly generates a finite-dimensional feedback controller for this class of systems. The theory is based on a preliminary approximation theory which allows the delay system to be exponentially approximated by a system of ordinary differential equations.
Keywords:delay system;differential-difference equation;finite-dimensional pproximation;finite-dimensional observer