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dc.contributor.authorNoell, Ian Harvey
dc.date.accessioned2013-02-21T02:51:27Z
dc.date.available2013-02-21T02:51:27Z
dc.date.issued1994
dc.identifier.urihttp://hdl.handle.net/10179/4195
dc.description.abstractWiener-Hopf methods are used in this thesis to solve the output feedback Linear Quadratic Gaussian (LQG) control problem for continuous, linear time-invariant systems where the weighting on the control inputs and the measurement noise intensity may be singular. Some outstanding issues regarding the closed loop stability of WienerHopf solutions and its connection with partial fraction expansion are resolved. The main tools in this study are state-space representations and Linear Matrix Inequalities. The relationship between Linear Matrix Inequalities and Wiener-Hopf solutions is studied; the role of the Linear Matrix Inequality in determining spectral factors, the partial fraction expansion step, the form of the controller, and the value of the performance index is demonstrated. One of the main contributions of this thesis is the derivation of some new descriptor forms for singular LQG controllers which depend on the solution to the Linear Matrix Inequalities. These forms are used to establish the separation theorem for singular LQG control problems and to investigate the order of singular LQG controllers.en
dc.language.isoenen
dc.publisherMassey Universityen_US
dc.rightsThe Authoren_US
dc.subjectGaussian quadrature formulasen
dc.subjectLinear operatorsen
dc.titleA descriptor approach to singular LQG control programmes using Wiener-Hopf methods : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Production Technology at Massey Universityen
dc.typeThesisen
thesis.degree.disciplineProduction Technologyen
thesis.degree.grantorMassey Universityen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophy (Ph.D.)en


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