Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Adaptive Observer Design for Nonlinear Systems Using Generalized Nonlinear Observer Canonical Form

  • Jo, Nam-Hoon (School of Electrical Engineering, Soongsil University) ;
  • Son, Young-Ik (Department of Electrical Engineering, Myongji University)
  • Published : 2004.07.01
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Abstract

In this paper, we present an adaptive observer for nonlinear systems that include unknown constant parameters and are not necessarily observable. Sufficient conditions are given for a nonlinear system to be transformed by state-space change of coordinates into an adaptive observer canonical form. Once a nonlinear system is transformed into the proposed adaptive observer canonical form, an adaptive observer can be designed under the assumption that a certain system is strictly positive real. An illustrative example is included to show the effectiveness of the proposed method.

Keywords

References

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