Ke, Z. Q., Logemann, Hartmut, Rebarber, R.
In this paper we solve tracking and disturbance rejection problems for stable infinite-dimensional systems using a simple low-gain controller suggested by the internal model principle. For stable...
A Sampled-Data Servomechanism for Stable Well-Posed Systems (2009)
Ke, Z, Logemann, Hartmut, Rebarber, R.
In this technical note, an approximate tracking and disturbance rejection problem is solved for the class of exponentially stable well-posed infinite-dimensional systems by invoking a simple...
An Extension of Russell's Principle on Exact Controllability (2008)
We extend the well-known principle of Russell which says that, under certain assumptions, stabilizability implies exact controllability. We replace stabilizabilty by the less restrictive requirement...
Estimatable Linear Systems (2007)
Weiss Center, G. Weiss, R. Rebarber
A well-posed linear system is said to be optimizable if for any initial state, an input function in L 2 can be found such that the state trajectory is in L 2 (this is also known as the finite cost...