Transactions of Nanjing University of Aeronautics & Astronautics
Disturbance Rejection Adaptive Control for Atmospheric Effects on Aircraft
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Abstract:
Disturbance rejection algorithm based on model reference adaptive control (MRAC) augmentation is investigated for uncertain turbulence disturbances. A stable adaptive control scheme is developed based on lower diagonal upper (LDU) decomposition of the high frequency gain matrix, which ensures closedloop stability and asymptotic output tracking. Under the proposed control techniques, the bounded stability is achieved and the controller is able to remain within tight bounds on the matched and unmatched uncertainties. Finally, simulation studies of a linearized lateraldirectional dynamics model are conducted to demonstrate the performance of the adaptive scheme.
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