Results 61 to 70 of about 509,812 (335)

Active disturbance rejection attitude control for a hypersonic reentry vehicle with actuator saturation

open access: yesInternational Journal of Advanced Robotic Systems, 2017
In this article, nonlinear uncertainty has been investigated for a hypersonic reentry vehicle subject to actuator saturation via active disturbance rejection control technology.
Hongjiu Yang   +3 more
doaj   +1 more source

Extended-State-Observer-Based Chattering Free Sliding Mode Control for Nonlinear Systems With Mismatched Disturbance

open access: yesIEEE Access, 2018
This paper presents a novel chattering free sliding mode control method for a class of nonlinear systems in the presence of matched disturbance and mismatched disturbance based on an extended state observer.
Sheng-Li Shi   +2 more
doaj   +1 more source

Extended state observer-based predictive control for soft open point

open access: yesFrontiers in Energy Research, 2023
This paper proposes an extended state observer-based ultra-local model-free three-vector predictive control method for Soft Open Point (SOP). First, the Ultra-Local Model-Free Predictive Control (ULMFPC) method is proposed to improve the robustness of ...
Zhengqi Wang   +3 more
doaj   +1 more source

Enhancing Station-Keeping Control With the Use of Extended State Observers [PDF]

open access: yesFrontiers in Applied Mathematics and Statistics, 2018
Recently there has been a resurgence of interest in missions to the moon and a major challenge of such missions is to provide a continuous communication between the Earth and the Moon's far side. Orbits around the L2 Earth-Moon Lagrange point have been a topic of interest in this field due to their potential for constant communication with both the ...
Biggs, James D.   +2 more
openaire   +3 more sources

Outcomes of Live Virus Vaccination in Patients With Vascular Anomalies Being Treated With Sirolimus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Live vaccination in patients with vascular anomalies (VA) receiving sirolimus remains controversial due to immunosuppressive effects and theoretical risks. Procedure This single‐center retrospective study included patients with VA less than 4 years old at the start of sirolimus therapy who were incompletely vaccinated.
Svatava Merkle   +5 more
wiley   +1 more source

Pitching axis control for a satellite camera based on a novel active disturbance rejection controller

open access: yesAdvances in Mechanical Engineering, 2017
The pitching axis of a satellite camera is controlled under the weightless environment. A novel active disturbance rejection controller is designed to eliminate the influences of the pitching axis.
Bingyou Liu   +3 more
doaj   +1 more source

Event-based State Estimation: An Emulation-based Approach

open access: yes, 2017
An event-based state estimation approach for reducing communication in a networked control system is proposed. Multiple distributed sensor agents observe a dynamic process and sporadically transmit their measurements to estimator agents over a shared bus
Trimpe, Sebastian
core   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

ARV Nonlinear Disturbance Estimation Based on Extended State Observer

open access: yes水下无人系统学报
Autonomous/remotely-operated vehicles(ARVs) are susceptible to complex flow field disturbances during underwater path tracking missions, where traditional linear observers exhibit suboptimal performance in addressing flow field-induced nonlinear ...
Xiaohan LIU   +5 more
doaj   +1 more source

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