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|Title:||Robust control of stochastic systems against bounded disturbances with application to flight control|
|Citation:||IEEE Transactions on Industrial Electronics, 2014; 61(3):1504-1515|
|Ming Liu, Lixian Zhang, Peng Shi and Hamid Reza Karimi|
|Abstract:||This paper investigates the problems of state observer design and observer-based integral sliding-mode control(SMC) for a class of Itô stochastic systems subject to simultaneous input and output disturbances. A new type of sliding-mode-based descriptor observer method is developed to approximate the system state and disturbance vectors. An integral-type SMC schemeis proposed based on the state estimation to stabilize the overall system. The main contributions of this approach are as follows: 1) The desired estimations of state and disturbance vectors can be obtained simultaneously, and 2) in the designed sliding-mode observer, the integral term of the Itô stochastic noise is eliminated in the proposed sliding-mode surface by a matrix design; thus, the reachability of the sliding-mode surface is strictly guaranteed. Finally, the proposed approach is applied to the disturbance reconstruction problem of an F-18 aircraft model to illustrate the effectiveness and applicability.|
|Keywords:||input disturbance, integral sliding-mode control (SMC), output disturbance, sliding-mode observer (SMO), state estimation.|
|Rights:||© 2013 IEEE|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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