Browsing by Subject "System stability"

Now showing items 1-20 of 36

    • Conference Object  

      Adaptive bounding techniques for stable neural control systems 

      Polycarpou, Marios M.; Ioannou, Petros A. (IEEE, 1995)
      This paper considers the design of stable adaptive neural controllers for uncertain nonlinear dynamical systems with unknown nonlinearities. The Lyapunov synthesis approach is used to develop state-feedback adaptive control ...
    • Article  

      Adaptive control of a class of slowly time varying systems with modeling uncertainties 

      Fidan, B.; Zhang, Y.; Ioannou, Petros A. (2005)
      In a recent work, a new linear adaptive controller based on certainty-equivalence and backstepping design, which promises a level of transient and asymptotic performance comparable to that of the tuning functions adaptive ...
    • Article  

      Adaptive mixing control with multiple estimators 

      Baldi, S.; Ioannou, Petros A.; Kosmatopoulos, E. B. (2012)
      A recently proposed adaptive control scheme with mixing involves the use of precalculated candidate controllers whose output is weighted on the basis of the parameter estimates generated by an online parameter estimator. ...
    • Conference Object  

      Adaptive vehicle following control system with variable time headways 

      Zhang, J.; Ioannou, Petros A. (2005)
      In this paper, we design a vehicle following control system with variable time headways, using adaptive control design methodology. It is shown that the designed vehicle following control system guarantees closed-loop ...
    • Article  

      Comparision of spacing and headway control laws for automatically controlled vehicles 

      Swaroop, D.; Hedrick, J. K.; Chien, C. C.; Ioannou, Petros A. (1994)
      This paper investigates two different longitudinal control policies for automatically controlled vehicles. One is based on maintaining a constant spacing between the vehicles while the other is based upon maintaining a ...
    • Conference Object  

      Comparison of a nonlinear adaptive controller with certainty-equivalence type adaptive controllers 

      Zhang, Youping; Ioannou, Petros A. (IEEE, 1995)
      Recently a new class of adaptive controllers for linear time invariant minimum phase plants has been proposed and analyzed. The design of these controllers is based on nonlinear tools and appears to be different from that ...
    • Conference Object  

      Control of discrete-time partially-observed jump linear systems over causal communication systems 

      Denic, S. Z.; Charalambous, Charalambos D. (2006)
      We consider the problem of control of discrete-time partially-observed jump linear system over a noisy causal communication channel. Necessary conditions for observability and stabilizability in probability and r-th mean ...
    • Article  

      Design of strictly positive real systems using constant output feedback 

      Huang, C. -H; Ioannou, Petros A.; Maroulas, J.; Safonov, M. G. (1999)
      In this paper, the authors present a linear matrix inequality (LMI) approach to the strictly positive real (SPR) synthesis problem: find an output feedback K such that the closed-loop system T(s) is SPR. The authors establish ...
    • Conference Object  

      Entrainment and vehicle following controllers design for autonomous intelligent vehicles 

      Chien, C. C.; Ioannou, Petros A.; Lai, M. C. (American Automatic Control Council, 1994)
      Entrainment and vehicle following controllers are proposed for autonomous intelligent vehicles in both non-tight and tight vehicle following maneuvers. A nonlinear vehicle model is used for designing the controllers. The ...
    • Article  

      Environmental evaluation of Intelligent Cruise Control (ICC) vehicles 

      Bose, Arnab; Ioannou, Petros A. (2000)
      During the last decade considerable research and development efforts have been devoted to automating vehicles in an effort to improve safety and efficiency of vehicle following. Several designs for automatic vehicle following ...
    • Conference Object  

      Feedback control utilizing packet dropping network links 

      Hadjicostis, Christoforos N.; Touri, R. (2002)
      The increasing availability of network connectivity has prompted the study of computer-based control methodologies that are implemented centrally or distributively using existing network infrastructure as the communications ...
    • Conference Object  

      Fuzzy traffic density homogenizer for automated highway system 

      Chien, C. C.; Ioannou, Petros A.; Chu, C. K. (IEEE, 1994)
      In this paper, a fuzzy traffic density homogenizer is proposed to alleviate or avoid the congestion by smoothing the traffic density distribution profile over the freeway. The proposed fuzzy traffic density homogenizer ...
    • Article  

      LQG optimality and separation principle for general discrete time partially observed stochastic systems over finite capacity communication channels 

      Charalambous, Charalambos D.; Farhadi, A. (2008)
      This paper is concerned with control of stochastic systems subject to finite communication channel capacity. Necessary conditions for reconstruction and stability of system outputs are derived using the Information ...
    • Article  

      Model Reference Adaptive Control for Plants with Unknown Relative Degree 

      Ioannou, Petros A.; Tao, G. (1993)
      One of the basic assumptions in stable model reference adaptive control (MRAC) that the relative degree n002A of the modeled part of the plant is known exactly and matches that of the reference model is relaxed by the ...
    • Article  

      Multiple model adaptive control with mixing 

      Kuipers, M.; Ioannou, Petros A. (2010)
      Despite the remarkable theoretical accomplishments and successful applications of adaptive control, the field is not sufficiently mature to solve challenging control problems where strict performance and robustness guarantees ...
    • Conference Object  

      Neural network control of unknown systems 

      Kosmatopoulos, Elias B.; Chassiakos, Anastassios; Boussalis, Helen R.; Mirmirani, Maj; Ioannou, Petros A. (IEEE, 1998)
      In this paper, we show that for all unknown Multi-Input (MI) nonlinear system that affected by external disturbances, it is possible to construct a semi-global state-feedback stabilizer when the only information about the ...
    • Article  

      A new class of nonlinear robust adaptive controllers 

      Zhang, Y.; Ioannou, Petros A. (1996)
      Recently, a new class of adaptive control schemes, motivated from nonlinear systems theory, has been proposed for minimum phase linear time invariant plants. Under certain assumptions on the plant transfer function, these ...
    • Article  

      A new linear adaptive controller: Design, analysis and performance 

      Zhang, Y.; Ioannou, Petros A. (2000)
      The certainty equivalence and polynomial approach, widely used for designing adaptive controllers, leads to "simple" adaptive control designs that guarantee stability, asymptotic error convergence, and robustness, but not ...
    • Article  

      On the Stability Proof of Adaptive Schemes with Static Normalizing Signals and Parameter Projection 

      Tsao, T.; Ioannou, Petros A. (1993)
      Recently, it has been shown [8] that robust stability in model-reference adaptive control (MRAC) is guaranteed by simply using a static, instead of a dynamic, normalizing signal together with a parameter projection in the ...
    • Article  

      Parameter convergence of a new class of adaptive controllers 

      Zhang, Y.; Ioannou, Petros A.; Chien, C. -C (1996)
      A new class of adaptive control schemes for minimum-phase linear time invariant (LTI) systems has recently been developed using nonlinear design techniques which guarantee improved transient performance in addition to ...