This thesis discusses the development and the overall methodology of an optimal adaptive output feedback controller for linear systems. Therefore it makes use of methods and proceedings from a variety of fields of control theory, e.g. optimal control, static output feedback design, system identification, switched linear systems and real time adaption, and brings them together in a comprehensive approach. First, an alternative constructive design method for static output feedback controller based on linear quadratic optimization is presented. This new design method provides an enhanced convergence behaviour in comparison to common techniques and, therefore, supports the further design of optimal output feedback servo controller. To guarantee a consistent optimal closed loop behaviour and overall system stability, particularly in consideration of changing system parameters, the plant is constantly monitored by an estimator. Based on current methods of system identification theory which are extended whithin this thesis for an online approach, the estimator identifies and determines changes within the system parameters. The controller is adapted consequently, using a real time method, rested on the determined system parameter changes. A newly developed approach for stability analysis in the presence of non-predictable switching operations is also presented as part of the overall methodology. The development of an homotopy based methodology for the design of optimal output feedback controller for linear plants which are not stable, is a further particular subject of this thesis. The expected behaviour of this new approach in each of the developed techniques is confirmed in detailed simulations which display the advantages of such methodology.     «

This thesis discusses the development and the overall methodology of an optimal adaptive output feedback controller for linear systems. Therefore it makes use of methods and proceedings from a variety of fields of control theory, e.g. optimal control, static output feedback design, system identification, switched linear systems and real time adaption, and brings them together in a comprehensive approach. First, an alternative constructive design method for static output feedback controller based...     »