Results 31 to 40 of about 356,579 (289)

Estimation of neutral lipid and carbohydrate quotas in microalgae using adaptive interval observers [PDF]

open access: yes, 2013
International audienceUnder stress conditions, microalgae are known to accumulate large amounts of neutral lipids and carbohydrates, which can be used for biofuel production.
Bernard, Olivier   +2 more
core   +3 more sources

Constrained Control for Cloud Robotic Under Time Delay Based on Command Governor With Interval Estimation

open access: yesIEEE Access, 2019
The constrained command tracking problem for the cloud robotic system with unknown bounded time-varying delays is considered. Based on a novel predictor-observer approach, a command governor is proposed to modify the received command in order to ...
Shaobo Shen   +3 more
doaj   +1 more source

Design of High Precision Interval Observer for Robot System

open access: yesActuators, 2023
In order to solve the problem of parameter uncertainty and unknown external interference of wheeled mobile robots (WMR) in a complex environment, the design of a high-precision interval observer for the robot system is proposed.
Shuang Duan   +5 more
doaj   +1 more source

Inverter open circuit fault diagnosis based on residual performance evaluation

open access: yesIET Power Electronics, 2023
Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate.
Tianyu Sun   +5 more
doaj   +1 more source

State Estimation of Positive Switched Interval Systems with Metzler–Takagi–Sugeno Fuzzy Models

open access: yesMachines, 2023
This paper addresses the problem of estimating the state of a class of interval and positive nonlinear switched systems. The considered system class is represented by Metzler–Takagi–Sugeno fuzzy switched models with positive Lipschitz nonlinear functions
Dušan Krokavec, Anna Filasová
doaj   +1 more source

The Cosmological Spacetime [PDF]

open access: yes, 2009
We present here the transformations required to recast the Robertson-Walker metric and Friedmann-Robertson-Walker equations in terms of observer-dependent coordinates for several commonly assumed cosmologies.
Birkhoff G.   +4 more
core   +1 more source

Robust $H_{\infty}$ Interval Observer for Linear Systems With a Controllable Convergence Rate: A Parametric Method

open access: yesIEEE Access, 2019
In this paper, the design method of a robust interval observer for linear systems with time-varying disturbances is proposed. First, the H∞ gain performance is established by constructing the transfer function from disturbances to error dynamic ...
Long-Wen Liu, Da-Ke Gu
doaj   +1 more source

Fault Detection Algorithm for Wind Turbines’ Pitch Actuator Systems

open access: yesEnergies, 2020
A fault detection innovation to wind turbines’ pitch actuators is an important subject to guarantee the efficiency wind energy conversion and long lifetime operation of these rotatory machines.
Gisela Pujol-Vazquez   +2 more
doaj   +1 more source

INTERVAL OBSERVER FOR A BIOLOGICAL REACTOR MODEL [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2014
The method of an interval observer design for nonlinear systems with parametric uncertainties is considered. The interval observer synthesis problem for systems with varying parameters consists in the following.
T. A. Kharkovskaia   +4 more
doaj  

Application of interval state estimation in vehicle control

open access: yesAlexandria Engineering Journal, 2022
This paper mainly attempts to design an interval observer for vehicle dynamic system, and make interval observation of the state for moving vehicles. For this purpose, a novel robust estimation method was introduced to apply interval state estimation in ...
Zhaoxia Huang
doaj   +1 more source

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