• Command following and disturbance rejection for drillstring systems 

      Skarpetis, M. G.; Koumboulis, F. N.; Ladopoulos, T. (2000)
      In this paper a P-D state feedback law is proposed to control the angular velocity of the bit of an drillstring system. The design objective is: the angular velocity of the bit to follow a desired signal independently from ...
    • Decoupling of singular systems via P-D feedback 

      Koumboulis, F. N.; Mertzios, B. G. (1996)
      The problem of input-output decoupling of singular systems via proportional plus derivative (P-D) feedback is solved. The necessary and sufficient condition for the problem to have a solution is established. A special ...
    • Disturbance decoupling of singular systems via P-D feedback 

      Koumboulis, F. N.; Mertzios, B. G. (1999)
      The problem of disturbance decoupling of singular systems via proportional plus derivative (P-D) feedback is solved. The necessary and sufficient condition for the problem to be solvable is established as a rank condition ...
    • MIMO Techniques for Jamming Threat Suppression in Vehicular Networks 

      Kosmanos D., Prodromou N., Argyriou A., Maglaras L.A., Janicke H. (2016)
      Vehicular ad hoc networks have emerged as a promising field of research and development, since they will be able to accommodate a variety of applications, ranging from infotainment to traffic management and road safety. A ...
    • Multi - Objective robust control for 4WS cars 

      Skarpetis, M. G.; Koumboulis, F. N. (2000)
      The problem of robust regional stabilization with simultaneous robust triangular decoupling (RRSRTD) for a four wheel steering car (4WS) is studied. First the robust triangular technique is applied to the 4WS car in order ...
    • Noninteracting control for helicopter in straight horizontal flight 

      Koumboulis, F. N.; Skarpetis, M. G.; Griparis, M. K. (1998)
      Pitch angle and forward velocity are decoupled via a static state feedback law for the case of helicopter in straight horizontal flight. The set of stability derivatives for which decoupling is satisfied, is explicitly ...
    • Robust exact model matching via P-D feedback with application to DC servo motor 

      Koumboulis, F. N.; Skarpetis, M. G. (1996)
      The problem of exact model matching for single input single output linear systems with nonlinear uncertain structure, via an independent of the uncertainties P-D state and output feedback, is studied. The necessary and ...
    • 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 ...
    • 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. ...