Finite-time output feedback stabilization of lower-triangular nonlinear systems

Zhi Liang Zhao, Zhong Ping Jiang

Research output: Contribution to journalArticlepeer-review


The finite-time stabilization of a general class of lower-triangular nonlinear systems using output feedback is addressed in this paper. The system nonlinearities are only required to be Hölder continuous with output-dependent Hölder coefficients. A new constructive output-feedback, finite-time controller design is proposed based on a finite-time observer. Rigorous finite-time stability analysis is given for the closed-loop observer–controller system. A practical example of controlling a robotic model is adopted to illustrate the proposed method.

Original languageEnglish (US)
Pages (from-to)259-269
Number of pages11
StatePublished - Oct 2018


  • Finite-time observer
  • Finite-time stability
  • Nonlinear systems
  • Output feedback stabilization

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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