International Journal of applied mathematics and computer science

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Paper details

Number 3 - September 2006
Volume 16 - 2006

Observer design using a partial nonlinear observer canonical form

Klaus Röbenack, Alan F. Lynch

This paper proposes two methods for nonlinear observer design which are based on a partial nonlinear observer canonical form (POCF). Observability and integrability existence conditions for the new POCF are weaker than the well-established nonlinear observer canonical form (OCF), which achieves exact error linearization. The proposed observers provide the global asymptotic stability of error dynamics assuming that a global Lipschitz and detectability-like condition holds. Examples illustrate the advantages of the approach relative to the existing nonlinear observer design methods. The advantages of the proposed method include a relatively simple design procedure which can be broadly applied.

observer design, canonical form, detectability