Output-feedback global tracking for unknown control direction plants with application to extremum-seeking control

@article{Oliveira2011OutputfeedbackGT,
  title={Output-feedback global tracking for unknown control direction plants with application to extremum-seeking control},
  author={Tiago Roux Oliveira and Liu Hsu and Alessandro Jacoud Peixoto},
  journal={Automatica},
  year={2011},
  volume={47},
  pages={2029-2038}
}
This paper addresses the design of a sliding mode tracking controller for single-input–single-output (SISO) uncertain plants with relative degree one and unknown control direction, i.e., with unknown sign of the high frequency gain (HFG). We demonstrate that, for a class of linear plants with nonlinear output function, it is possible to achieve global exact tracking using only output-feedback by combining a recently introduced periodic switching function with a well-known control… CONTINUE READING
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