This paper is concerned with the observer-based H∞ proportional-integral-derivative (PID) control issue for discrete-time systems using event-triggered mechanism subject to periodic random denial of service (DoS) jamming attacks and infinitely distributed delays. In order characterize occurrence DoS in network channel between controller actuator, Kronecker delta function used represent switchin...

We present an adaptive observer design for a first-order hyperbolic system of Partial Differential Equations with uncertain boundary parameters. The design relies on boundary measurements only, and is based on a backstepping approach. Using a Gradient Descent technique, we prove exponential convergence of the distributed system and estimation of the parameter. This method is applied to the esti...

In this paper, we investigate a class of information-flow security properties called opacity in partial-observed discrete-event systems. Roughly speaking, system is said to be opaque if the intruder, which modeled by passive observer, can never determine “secret” for sure. Most existing notions consider secrets related actual behaviors system. new type secret knowledge user. Specifically, assum...

In this paper, we propose a new chaos-based communication scheme using the observers. The novelty lies in the masking procedure that is employed to hide the confidential information using the chaotic oscillator. We use a combination of the addition and inclusion methods to mask the information. The performance of two observers, the proportional observer (P-observer) and the proportional integra...

Dynamic stability is critical to achieve the safety of cars, particularly during emergency maneuvers. Coordinated control algorithms are suggestive enhanced and a vehicle. Hence, novel adaptive robust multi-input framework developed using combination direct yaw moment (DYC) active front steering (AFS). The dynamics system mechanism included for reliability proposed scheme. controller according ...

Dynamic positioning (DP) and tracking systems for ships are usually designed under the assumption that the kinematic equations can be linearized about a set of predeened constant yaw angles, typically 36 operating points in steps of 10 degrees, to cover the whole heading envelope. This is necessary when applying linear (Kalman lter) theory and gain scheduling techniques. However, global exponen...

We have studied the problem of static competitive routing to parallel queues with polynomial link holding costs. We have established the uniqueness of the NE for a general topology with the BPR cost [22] and have obtained a simple relationship with the globally optimal solution. We have further obtained some explicit results for the special case of affine link costs. The results of this note sh...

Analysis and observer design for nonlinear systems have long been investigated, but no generally applicable methods exist as yet. A large class of nonlinear systems can be well approximated by Takagi-Sugeno fuzzy models, for which methods and algorithms have been developed to analyze their stability and to design observers. However, results obtained for Takagi-Sugeno fuzzy models are in general...

We describe the expected distribution of intensity for a scintillating source of finite size observed through a scattering medium, including systematic and instrumental effects. We describe measurements of the size of the Vela pulsar, using this technique. 1. Theoretical Background Waves from a pointlike source observed through a scattering medium will suffer random phase changes. If the phase ...

We consider the problem of state estimation for a parameter-varying system that is unobservable some values time-varying parameters. The set parameter divided into finite number subsets which observable, and switched observer proposed. A dwell-time condition defined ensures exponential convergence. conditions stability are formulated in form matrix inequalities, can be used gains tuning. obtain...