In this paper, we investigate the event-triggered consensus problems of nonlinear strict feedback MASs under directed graph. Based on high-gain control technique, firstly give a state-based algorithm and prove that Zeno behavior can be excluded. When full state information is unavailable, observer given to estimate each agent an observer-based developed. Finally, example verify effectiveness bo...

Abstract—Necessary and sufficient conditions are presented under which a discrete-time autonomous system with outputs is locally diffeomorphic to an output-scaled linear observable system or an output-scaled nonlinear system in the observer form. As a consequence of such characterizations, the nonlinear observer design problem is studied by a time-scaling approach combined with the exact linear...

A switched reluctance motor (SRM) drive generally requires a rotor position sensor for commutation and current control. However, the use of this position sensor increases both cost and size of the motor drive and causes limitations for industrial applications. In this paper, a novel indirect position sensing technique, namely, the sliding-mode observer, is proposed for SRM drives. The correspon...

Abstract-This paper discusses the problem of dynamic improvement technique to the linear constrained control for continuous-time system with a state observer, using the inverse method. This leads to benefit from a large set of initial states to the cost of a slow dynamic of the closedloop system. During the evolution of the system, the dynamic will be better and better while the constraints on ...

We present a technique to predict property violations in multi-threaded programs from successful executions. An appealing aspect of our technique is that it is entirely automatic; another is that no special simulation or modeling infrastructure is needed. All the user needs to do is to provide the multi-threaded system and the property to check. An observer is automatically generated from the p...

accurate interpretation of radiographic images is dependent on viewing conditions. recently the number of radiology departments has been increased so it needs to use a workstation for reporting. the aim of this study was assess monitor performance and the effect of viewing conditions on object detection. this investigation aimed to quantify the effects of changes in box brightness and ambient l...

This work proposes a detectability condition for linear time-varying systems based on the exponential dichotomy spectrum. The guarantees existence of an observer, whose gain is determined only by unstable modes system. allows observer design with low computational complexity compared to classical estimation approaches. An extension this class nonlinear proposed, and local convergence correspond...

This paper investigates the fault estimation problem for discrete-time switched systems. Firstly, sensor is regarded as an augmented state, and then original system converted into a singular system. After that, based on obtained system, robust state observer designed using $ L_{\infty} technique. Given above observer, interval zonotope method established to complete estimation. Finally, circuit...

An observer based variable sampling period phase locked loop is introduced for grid connected systems. The composite observer acts as an efficient estimator of the fundamental components from a periodic input signal rich in DC and harmonics. The observer gains are designed using pole placement technique, which inherently ensures the stability of this estimator. Even under drift frequency, a con...