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Reliable LQG control with sensor failures

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3 Author(s)
Yang, G.H. ; Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore ; Wang, J.L. ; Soh, Y.C.

The paper deals with reliable LQG controller design for linear systems with sensor failures. A model of sensor failures more practical than outage is adopted. Two procedures of designing reliable LQG controllers are presented: stabilising solutions of three coupled Riccati equations; and solutions to one Riccati equation and two linear matrix inequalities. The resulting control systems are guaranteed to be robustly stable and with a known cost bound on the LQG cost against sensor failures. Algorithms are developed to obtain a solution and illustrated via numerical examples

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Control Theory and Applications, IEE Proceedings -  (Volume:147 ,  Issue: 4 )