non-fragile observer design is the main problem of this paper. using continuous frequency distribution, the stability conditions based on integer order lyapunov theorem are derived for lipschitz class of nonlinear fractional order systems. the proposed observer is stable beside the existence of both gain perturbation and input disturbance. for the first time, in this paper a systematic method i...

This paper addresses parameter and state estimation problem in the presence of the perturbation of observer gain bounded input disturbances for the Lipschitz systems that are linear in unknown parameters and nonlinear in states. A new nonlinear adaptive resilient observer is designed, and its stability conditions based on Lyapunov technique are derived. The gain for this observer is derived sys...

A finite state automaton is adopted as a model for Discrete Event Dynamic Systems (DEDS). Observations are assumed to be a subset of the event alphabet. Observability is defined as having perfect knowledge of the current state at points in time seperated by bounded numbers of transitions. A polynomial test for observability is given. It is shown that an observer may be constructed and implement...

Various faults and disturbances often make the grid unbalanced distorted. To grid-connected converters resilient to distorted grid, real-time estimation of voltage sequences are essential. Adaptive-observer based grid-synchronization techniques very suitable for this purpose. In paper, a comparative analysis three recently proposed adaptive observer-based technique presented frequency sequence ...

This paper designs a resilient stubborn observer for switched autonomous systems (SASs) with an energy harvesting sensor (EHS). In order to extend the lifespan of sensor, ability is used. For restraining effect measurement outliers, designed which includes saturation function varying levels. The gain fluctuation considered dealt by resilience filtering scheme. aim this is, considering fluctuati...

1 *Assistant Professor, Electrical and Computer Engineering Department, Kharazmi University, Tehran, Iran,: [email protected], 2 .Associated Professor, Faculty of Electrical Engineering, Tarbiat Modares University, Tehran, Iran. 3 .Assistant Professor, Faculty of Electrical Engineering, Tarbiat Modares University, Tehran, Iran Abstract Non-fragile H ∞ observer design is the main problem of th...

a non-malleable code is a variant of an encoding scheme which is resilient to tampering attacks. the main idea behind nonmalleable coding is that the adversary should not be able to obtain any valuable information about the message. non-malleablecodes are used in tamper-resilient cryptography and protecting memories against tampering attacks. many different types of nonmalleability have already...

This study introduces a resilient frequency controller for nonlinear interconnected power systems to counteract endogenous/exogenous system disturbances. A neural network-based observer (NNO) is intended estimate lumped disturbances, such as unmodelled dynamics and unknown The estimated NNO’s output incorporated with second-order sliding mode (SOSMC) minimize chattering in the control effort im...

resilient modulus of pavement materials is a key property required for the pavement thickness design. this paper describes the results of an experimental study on the effects of temperature and loading frequency on the resilient modulus of a sbs polymer modified asphalt concrete under dry and saturated conditions. dynamic creep tests were conducted on dry and saturated specimens of the mixture ...