Modal coupling in linear control systems using robust eigenstructure assignment
Littleboy, D. M. and Nichols, N. (1998) Modal coupling in linear control systems using robust eigenstructure assignment. Linear Algebra and its Applications, 275-276. pp. 359-379. ISSN 0024-3795
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To link to this article DOI: 10.1016/S0024-3795(97)10053-2
Eigenvalue assignment methods are used widely in the design of control and state-estimation systems. The corresponding eigenvectors can be selected to ensure robustness. For specific applications, eigenstructure assignment can also be applied to achieve more general performance criteria. In this paper a new output feedback design approach using robust eigenstructure assignment to achieve prescribed mode input and output coupling is described. A minimisation technique is developed to improve both the mode coupling and the robustness of the system, whilst allowing the precision of the eigenvalue placement to be relaxed. An application to the design of an automatic flight control system is demonstrated.
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