IEEE Transactions on Automatic Control, Vol.39, No.9, 1936-1939, 1994
The Discrete-Time H-Infinity Control Problem with Strictly Proper Measurement Feedback
This paper is concerned with the discrete-time H(infinity) control problem with strictly proper measurement feedback. We derive necessary and sufficient conditions for the existence of a strictly proper compensator which achieves a given H(infinity) norm bound. Note that contrary to the continuous time, in discrete time there might exist a suitable proper compensator but no suitable strictly proper compensator. Finally, we given an explicit formula for one controller which achieves this bound.
Keywords:OPTIMIZATION;SYSTEMS