This paper is concerned with robust observer design for linear time-delay systems in the presence of unstructured uncertainties and of disturbances as well. The proposed method ensures the stability of the observer and the H∞ attenuation of uncertainty and disturbance effects on the estimated error. The result is developed ina delay dependent framework and the observer gain matrix is obtained b...

This note fix the proof of Theorem 2 in the article [2]. Equations from the original paper will be denoted with a star (for example (1∗)) whereas equations of the present corrected paper will be denoted without a star (for example (1)). I. THE ERROR The function Ṽα used in the proof of Theorem 2 in [2], and derived from Theorem 10 in [3], is not C with respect to (e, α). Indeed, one has

This paper deals with bumpless transfer between a number of observer-based controllers in a gain scheduling architecture. Linear observer-based controllers are designed for a number of linear approximations of a nonlinear system in a set of operating points, and gain scheduling control can subsequently be achieved by interpolating between each controller. The Youla-Jabr-Bongiorno-Kucera (YJBK) ...

We propose a method of interpolating linear time-invariant controllers with observer state feedback structure in order to generate a continuously-varying family of controllers that stabilizes a family of linear plants. Gain scheduling is a motivation for this work, and the interpolation method yields guidelines for the design of gain scheduled controllers. The scheduling method is illustrated w...

Abstract: In this paper, a time varying disturbance observer subject to sampled data’s measurements is proposed for a class of non-linear systems. The proposed observer combines the advantage of a high gain structure in terms of convergence speed and an output predictor which remains continuous between the sampling times. The exponential convergence of the proposed observer is proved using a Ly...

An information signal can be embedded in a transmitter which produces a chaotic signal, it is inviable to the observer who has no knowledge about the transmitter, but it can be recovered if the receiver is a replica of the chaotic transmitter. In this paper, a new aspect of the chaotic communication is introduced. A highgain observer at the receiver’s end replaces the conventional chaotic syste...

The Network-on-Chip (NoC) approach is a promising solution to the increasing complexity of on-chip communication problems due to its high scalability. A NoC architecture design with ultra-low latency and high throughput is critical in order to support a wide range of applications. In this paper, we propose novel spatial-based NoC resource allocation algorithms to reduce the communication conges...

Abstract: This paper proposes an high-gain observer design technique for fault detection in a hydraulic pipeline. A general nonlinear model of a pipeline is first derived based on general conditions. Then the observer is designed based on the general nonlinear model without linearisation. Simulation results show that the proposed technique can detect leaks quickly and accurately, compared with ...

In non-uniform sampled systems, the measurements are arriving at irregular time intervals. However, the control is updated at regular time intervals. An observer is required to obtain the estimate of the states during the control update times. We evaluate two observer designs: A Kalman filter and a gain-scheduling observer. The Kalman filter has the optimal performance. However, it is computati...