The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Adaptive Observer for a System with Sinusoidal Disturbance in Measurement Output

측정 출력에 삼각함수 외란이 포함된 시스템의 적응 관측기

  • Received : 2010.01.30
  • Accepted : 2010.04.05
  • Published : 2010.05.01
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Abstract

An adaptive state observer is presented for a class of LTI systems that have a sinusoidal disturbance in the measurement output. Adaptation rules are developed for identifying the unknown sinusoidal disturbance signal from the system output. For the application of the identification result to the state estimation problem, the sinusoidal signal with arbitrary initial phase has been considered in this paper. In order to test the performance of proposed algorithm, comparative computer simulations have been carried out with an existing robust observer. The simulation results show the effectiveness of the proposed method.

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References

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