A spectral Lyapunov function for exponentially stable LTV systems

  • Authors:
  • J. Jim Zhu;Yong Liu;Rui Hang

  • Affiliations:
  • School of Electrical Engineering and Computer Science, Ohio University, Athens, OH;Cardinal Health Inc., Yorba Linda, CA;School of Electrical Engineering and Computer Science, Ohio University, Athens, OH

  • Venue:
  • ACC'09 Proceedings of the 2009 conference on American Control Conference
  • Year:
  • 2009

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Abstract

This paper presents the formulation of a Lyapunov function for an exponentially stable linear time-varying (LTV) system using a well-defined PD-spectrum and the associated PD-eigenvectors. It provides a bridge between the first and second methods of Lyapunov for stability assessment, and will find significant applications in the analysis and control law design for LTV systems and linearizable nonlinear time-varying systems.