Time-varying high-gain trajectory linearization observer design

Authors:
Rui Huang;J. Jim Zhu
Affiliations:
School of Electrical Engineering and Computer Science, Ohio University, Athens, Ohio;School of Electrical Engineering and Computer Science, Ohio University, Athens, Ohio
Venue:
ACC'09 Proceedings of the 2009 conference on American Control Conference
Year:
2009

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Abstract

In this paper, we extend the previous results on trajectory linearization observer (TLO) for SISO to MIMO nonlinear time-varying (NLTV) systems, and extend the high-gain observer theory for linear time-invariant (LTI) observer error dynamics to linear time-varying (LTV) observer error dynamics, using the (time-varying) PD-eigenvalue assignment method. In addition, the time-varying high gain TLO alleviates the slowly varying restriction, and relaxes the restriction of existing time-invariant nonlinear high gain observer to affine nonlinear systems to allow for any linearizable NLTV system.