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This monograph demonstrates how the performance of various well-known adaptive controllers can be improved significantly using the dual effect. The modifications to incorporate dual control are realized separately and independently of the main adaptive controller without complicating the algorithms. A new bicriterial approach for dual control is developed and applied to various types of popular linear and nonlinear adaptive controllers. Practical applications of the designed controllers to several real-time problems are presented. This monograph is the first book providing a complete exposition on the dual control problem from the inception in the early 1960s to the present state of the art aiming at students and researchers in adaptive control as well as design engineers in industry.

Adaptive Dual Control: Theory and Applications

Introduction.- Fundamentals of Dual Control.- Survey of Dual Control Methods.- Bicriterial Synthesis Method for Dual Controllers.- Convergence and Stability of Adaptive Dual Control.- Dual Pole-Placement Controller with Direct Adaptation.-Dual Model Reference Adaptive Control (MRAC).- Dual Control for Multivariable Systems in State Space Representation.- A Simplified Approach to the Synthesis of Dual Controllers with Indirect Adaptation.- Dual Pole-Placement and LQG Controllers with Indirect Adaptation.- Application of Dual Controllers to the Speed Control of a Thyristor-Driven DC-Motor.- Application of Dual Controllers to a Laboratory Scale Vertical Take-Off Airplane.- Robustness against Unmodeled Effects and System Stability.- Dual Modification of Predictive Adaptive Controllers.- Simulation Studies and Real-Time Control Using MATLAB/SIMULINK.- Conclusion.