• Robust regional stabilisation of an electropneumatic actuator 

      Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)
      Sufficient conditions are derived to solve the problem of robust regional stabilisation of linear systems with nonlinear, uncertain structure and uncertain order. The problem of increasing the speed and accuracy of uncertain ...
    • Robust triangular decoupling via output feedback 

      Koumboulis, F. N.; Skarpetis, M. G. (2000)
      The problem of input-output triangular decoupling for linear systems with nonlinear uncertain structure, via an independent of the uncertainties static output feedback law, is solved. The necessary and sufficient conditions ...
    • Robust triangular decoupling with application to 4WS cars 

      Koumboulis, F. N.; Skarpetis, M. G. (2000)
      The necessary and sufficient conditions for the problem of robust triangular decoupling (RTD) are established for the case of a linear time-invariant system with a nonlinear uncertain structure. The general analytic ...
    • Robust triangular decoupling with simultaneous robust disturbance rejection 

      Koumboulis, F. N.; Skarpetis, M. G. (2001)
      For the case of a linear time invariant system with nonlinear uncertain structure the problem of robust triangular decoupling with simultaneous robust disturbance rejection (RTDRDR) is studied. The necessary and sufficient ...
    • Rotary gust rejection for helicopters 

      Koumboulis, F. N.; Skarpetis, M. G.; Griparis, M. K. (1998)
      For the case of helicopters in straight horizontal flight, the effects of a rotary gust to the forward velocity and the downward velocity of the helicopter are rejected. The rotor commands appear to be independent, i.e. ...
    • Static controllers for magnetic suspension and balance systems 

      Koumboulis, F. N.; Skarpetis, M. G. (1996)
      For a test aircraft in a wind tunnel with magnetic suspension and balance systems, a decoupling control configuration is proposed. Using the input-output decoupling technique the flight variables are controlled independently ...