Stable adaptation in the presence of actuator constraints with flight control applications

Eugene Lavretsky, Naira Hovakimyan

Research output: Contribution to journalArticlepeer-review


For a class of multi-input dynamical systems with unknown parameters and matched uncertainties, a direct model reference adaptive control framework is developed that provides stable adaptation in the presence of multi-input constraints. The design is Lyapunov based and ensures global asymptotic tracking for open-loop stable systems. For unstable systems an estimate for the domain of attraction is derived based on the saturation magnitudes of actuators and system parameters. The theoretical results are verified using linear roll/yaw dynamics of an F-16 aircraft, in which benefits of the developed methodology are demonstrated in the presence of aerodynamic uncertainties and control failures.

Original languageEnglish (US)
Pages (from-to)337-345
Number of pages9
JournalJournal of Guidance, Control, and Dynamics
Issue number2
StatePublished - 2007
Externally publishedYes

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics


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