Observer Design for Multi-Output Unobservable Nonlinear Systems

관측가능하지 않은 다중출력 비선형 시스템의 관측기 설계기법

  • 조남훈 (숭실대학교 전기제어시스템공학부)
  • Published : 2004.07.01


The observer design problem is studied for a class of multi-output nonlinear systems that are not necessarily observable. Generalized nonlinear observer canonical form is introduced for multi-output nonlinear systems to design nonlinear observers. Sufficient conditions are given for a nonlinear system to be transformed by state-space change of coordinates into generalized nonlinear observer canonical form. Based on this canonical from, a sufficient condition is also given for the existence of nonlinear observers. An illustrative example is presented to show the design procedure of the proposed method.


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