Results 21 to 30 of about 509,812 (335)

Finite-time tracking control for uncertain robotic manipulators using backstepping method and novel extended state observer

open access: yesInternational Journal of Advanced Robotic Systems, 2019
This article considers finite-time trajectory tracking control problem for robotic manipulators with parameter uncertainties and external disturbances.
Chao Chen   +4 more
doaj   +1 more source

Expressing an observer in preferred coordinates by transforming an injective immersion into a surjective diffeomorphism [PDF]

open access: yes, 2018
When designing observers for nonlinear systems, the dynamics of the given system and of the designed observer are usually not expressed in the same coordinates or even have states evolving in different spaces. In general, the function, denoted $\tau$ (or
Andrieu, Vincent   +2 more
core   +2 more sources

Extended State Observer-Based Fuzzy Adaptive Backstepping Force Control of a Deep-Sea Hydraulic Manipulator with Long Transmission Pipelines

open access: yesJournal of Marine Science and Engineering, 2022
The force tracking control of deep-sea hydraulic manipulator systems with long transmission pipelines is disposed via fuzzy adaptive backstepping control based on an extended state observer in this paper.
Yanzhuang Chen   +3 more
doaj   +1 more source

Predictive scheme for observer-based control of LTI systems with unknown disturbances [PDF]

open access: yes, 2015
International audienceIn this work, it is shown that the results introduced in [1], that hold for full state measurement, can be extended to partial state measurement.
Chriette, Abdelhamid   +4 more
core   +3 more sources

Extended state observer–based nonlinear cascade proportional–integral–derivative control of the nano quadrotor

open access: yesAdvances in Mechanical Engineering, 2016
The nano quadrotor is a nonlinear multi-input and multi-output system with strong coupling, which causes difficulties in control law design. In order to achieve a favorable performance, an extended state observer–based nonlinear cascade proportional ...
Xiaoran Li, Mou Chen
doaj   +1 more source

Linear active disturbance rejection control of waste heat recovery systems with organic Rankine cycles [PDF]

open access: yes, 2012
In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique.
Fang Fang   +5 more
core   +2 more sources

Velocity Control Based on Active Disturbance Rejection for Air-Breathing Supersonic Vehicles

open access: yesComplexity, 2018
This paper investigates a velocity tracking control approach for air-breathing supersonic vehicles with uncertainties and external disturbances. Considering angle of attack is difficult to be precisely measured in practice, extended state observer ...
Chao Ming, Ruisheng Sun, Xiaoming Wang
doaj   +1 more source

Observer-Based Controller Design for Systems on Manifolds in Euclidean Space

open access: yes, 2018
A method of designing observers and observer-based tracking controllers is proposed for nonlinear systems on manifolds via embedding into Euclidean space and transversal stabilization.
chen, chen, kalman
core   +1 more source

Back(reaction) to the Future in the Unruh-de Sitter State [PDF]

open access: yes, 2019
Motivated by black hole physics, we define the Unruh state for a scalar field in de Sitter space. Like the Bunch-Davies state, the Unruh-de Sitter state appears thermal to a static observer.
Aalsma, Lars   +2 more
core   +2 more sources

Nonlinear Error Feedback Positioning Control for a Pneumatic Soft Bionic Fin via an Extended State Observer

open access: yesIEEE Access, 2020
This paper presents a nonlinear error feedback controller for a pneumatic soft bionic fin based on an extended state observer. Manufacturing process is shown for a bionic stingray with the pneumatic soft bionic fin. A test experiment is carried out for a
Haiyan Cheng   +4 more
doaj   +1 more source

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