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On persistently exciting observers and a non-linear separation principle: Application to the stabilization of a generator
2003
International Journal of Control
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We provide a separation principle for some non-linear time-varying systems. The only assumption we make on the state feedback control law is that it does not vanish as the states grow unboundedly. For the observer, we propose a design method based on the assumption that the system is transformable into a form affine in the unmeasured variable and the property of persistency of excitation. This assumption covers but is not restricted to the common observability condition that the vector field
doi:10.1080/0020717031000104482
fatcat:cqz7ogxbhvhtbgnfwwuejuyecm