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Partial state observers for linear systems with unknown inputs
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DOI：10.1016/j.automatica.2008.05.011.png)
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摘要
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We consider the problem of constructing partial state observers for discrete-time linear systems with unknown inputs. Specifically, for any given system, we develop a design procedure that characterizes the set of all linear functionals of the system state that can be reconstructed through a linear observer with a given delay. By treating the delay as a design parameter, we allow greater flexibility in estimating state functionals, and are able to obtain a procedure that directly produces the corresponding observer parameters. Our technique is also applicable to continuous-time systems by replacing delayed outputs with differentiated outputs. (C) 2008 Elsevier Ltd. All rights reserved.
Keyword:
Unknown input observers
Fixed-lag estimation
Functional observers
System inversion
State estimation
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期刊
IF:
5.9
论文数:
1.2W
被引数:
5.2W
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