Transactions on Control, Automation and Systems Engineering

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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An Observer Design for MIMO Nonlinear Systems

  • Lee, Sungryul (Dept. of Electrical and Electronic Eng., Yonsei University) ;
  • Yanghee Yee (Dept. of Control and Measurement Eng., Korea Polytechnic University) ;
  • Park, Mignon (Dept. of Electrical and Electronic Eng., Yonsei University)
  • Published : 2002.09.01
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Abstract

This paper presents a state observer design for a class of MTMO nonlinear systems that has a block triangular structure. For this, the extension of the existing design for SISO triangular systems to MIMO cases is provided. Since the gain of the proposed observer. depends on a nonlinear part as well as a linear one of a system, it improves the transient performance of the high gain ob-server. Also, by using a generalized similarity transformation for the error dynamics, it is shown that order some boundedness condi-tion, the proposed observer guarantees the global exponential convergence of the estimation error. Finally, we will give a simulation example to show the validity of our design methodology.

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References

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