Delayed unknown input observers for discrete-time linear systems with guaranteed performance
نویسندگان
چکیده
In this paper, a state and unknown input observer is proposed for discrete-time linear systems with bounded unknown inputs and measurement disturbances. The design procedure is formulated using a set of linear matrix inequalities, and leverages delayed (or fixed-lag) estimates. The observer error states and/or user-defined performance outputs are guaranteed to operate at pre-specified performance bounds. Furthermore, by employing sufficiently large delays, the observer is guaranteed to provide exact asymptotic state and input estimates for minimum-phase systems.
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ورودعنوان ژورنال:
- Systems & Control Letters
دوره 103 شماره
صفحات -
تاریخ انتشار 2017