Results 11 to 20 of about 261,441 (340)

Adaptive Disturbance Rejection Generalized Predictive Control of Photoelectric Turntable Servo System [PDF]

Applied Sciences
In order to enhance the tracking accuracy and disturbance rejection capability in the speed loop of an optoelectronic tracking servo control system, a parameter self-adjusting disturbance rejection generalized predictive control method (STGPC) based on a
Wei Wang, Jiheng Jiang, Yan Dong, Jianlin Song, Huilin Jiang   +4 more
doaj   +2 more sources

Disturbance Observation and Suppression in an Airborne Electro-Optical Stabilized Platform Based on a Generalized High-Order Extended State Observer [PDF]

Sensors
Active disturbance rejection control (ADRC) is widely used in airborne optoelectronic stabilization platforms due to its minimal reliance on the mathematical model of the controlled object.
Lu Wang, Xiantao Li, Zhanmin Zhou, Yuzhang Liu, Zongyuan Yang, Shitao Zhang, Chong Li   +6 more
doaj   +2 more sources

Generalized proportional integral observer–based composite control method for robotic thermal tactile sensor with disturbances [PDF]

International Journal of Advanced Robotic Systems, 2017
In this article, we discuss the temperature regulation problem of robotic thermal tactile system under unknown time-varying disturbances. In order to improve the disturbance rejection property of the thermal system, a composite controller is presented ...
Congyan Chen, Yanduo Wang, Shihua Li
doaj   +2 more sources

Robust Adaptive Generalized Projective Synchronization of Chaotic Systems with Uncertain Disturbances [PDF]

Journal of Applied Mathematics, 2012
The generalized projective synchronization (GPS) of chaotic systems with uncertain parameter noise and external disturbance is discussed. Based on the adaptive technique, a response system is constructed, and a novel adaptive controller is designed to ...
Zhen Jia, Guangming Deng
doaj   +2 more sources

Disturbance-Observer-Based Sliding-Mode Speed Control for Synchronous Reluctance Motor Drives via Generalized Super-Twisting Algorithm [PDF]

Actuators
In this study, a novel composite speed controller combining a sliding-mode speed controller with a disturbance observer is proposed for the vector-controlled synchronous reluctance motor (SynRM) drive system.
Yong-Chao Liu
doaj   +2 more sources

Temporal network of experience sampling methodology identifies sleep disturbance as a central symptom in generalized anxiety disorder [PDF]

BMC Psychiatry
Background A temporal network of generalized anxiety disorder (GAD) symptoms could provide valuable understanding of the occurrence and maintenance of GAD. We aim to obtain an exploratory conceptualization of temporal GAD network and identify the central
Jiaxi Peng, Shuai Yuan, Zihan Wei, Chang Liu, Kuiliang Li, Xinyi Wei, Shangqing Yuan, Zhihua Guo, Lin Wu, Tingwei Feng, Yu Zhou, Jiayi Li, Qun Yang, Xufeng Liu, Shengjun Wu, Lei Ren   +15 more
doaj   +2 more sources

Generating Adversarial Disturbances for Controller Verification

CoRR, 2020
We consider the problem of generating maximally adversarial disturbances for a given controller assuming only blackbox access to it. We propose an online learning approach to this problem that \emph{adaptively} generates disturbances based on control inputs chosen by the controller.
Udaya Ghai, David Snyder, Anirudha Majumdar, Elad Hazan   +3 more
openaire   +3 more sources

A generalized proportional integral observer–based robust tracking design approach for quadrotor unmanned aerial vehicle

International Journal of Advanced Robotic Systems, 2022
This article mainly studies the trajectory tracking control for quadrotor unmanned aerial vehicle with unknown time-varying disturbances including parametric uncertainties, model errors, and external disturbances such as wind effects.
Shenghui Li, Zhenxing Sun
doaj   +1 more source

A Backstepping Controller Based on a Model-Assisted Extended State Observer for a Slice Rotor Supported by Active Magnetic Bearings

Actuators, 2022
To improve the robustness of a slice rotor system supported by active magnetic bearings (AMBs), here, we propose a backstepping controller based on a model-assisted extended state observer (MESO-BC). Based on a generalized extended state observer (GESO),
Boyuan Xu, Jin Zhou, Longxiang Xu
doaj   +1 more source

Multi-cyclone analysis and machine learning model implications of cyclone effects on forests

International Journal of Applied Earth Observations and Geoinformation, 2021
Past studies of cyclones (hurricanes, typhoons, tropical cyclones) disturbance showed that meteorological, topographical, and biological factors affect the patterns of forest disturbance intensity but left open the extent to which these findings were ...
Yanlei Feng, Robinson I. Negrón-Juárez, Jeffrey Q. Chambers   +2 more
doaj   +1 more source