Results 1 to 10 of about 979,740 (167)

Passive States for Essential Observers [PDF]

Journal of Mathematical Physics, 2008
The aim of this note is to present a unified approach to the results given in \cite{bb99} and \cite{bs04} which also covers examples of models not presented in these two papers (e.g. $d$-dimensional Minkowski space-time for $d\geq 3$).
Borchers H. J., Buchholz D., Buchholz D., Haag R., Kadison R. V., Kadison R. V., Kuckert B., Moskowitz M., Robert Strich, Summers S. J., Wüstner M.   +10 more
core   +4 more sources

Control Gain Determination Method for Robust Time-Delay Control of Industrial Robot Manipulators Based on an Improved State Observer [PDF]

Sensors
High-precision control of robotic manipulators plays a vital role in improving the efficiency and quality of industrial manufacturing. However, the inherent nonlinear and time-varying characteristics of robotic systems make high-accuracy control a ...
Yu Chen, Jianwan Ding, Tianchang Xu, Yanbing Liu   +3 more
doaj   +2 more sources

Full state observer-based pole placement controller for pulse width modulation switched mode voltage-controlled buck Converter [PDF]

Heliyon
Switched mode DC-DC converters play an important role in today's renewable energy systems, electric Vehicles, consumer electrical appliances, and many more.
Yeshiwas Fetene, Endalew Ayenew, Solomon Feleke   +2 more
doaj   +2 more sources

Linear Quantum State Observers

IEEE Transactions on Quantum Engineering, 2022
This article considers the use of linear state observers to infer the unknown state (density matrix) of a closed quantum system using generalized quantum measurement—positive operator-valued measures (POVMs). An efficient test for observability is
Maison Clouatre, Mark Balas, Vinod Gehlot, John Valasek   +3 more
doaj   +2 more sources

A Super-Twisting Extended State Observer for Nonlinear Systems

Mathematics, 2022
Disturbances and uncertainties are the main concerns in control systems. To obtain this information in real time, the extended state observer is proposed as the core of the active disturbance rejection control.
Yi Li, Panlong Tan, Junjie Liu, Zengqiang Chen   +3 more
doaj   +1 more source

Nonlinear Functional Observer Design for Robot Manipulators

Mathematics, 2023
In this paper, a nonlinear functional observer (NFO) is first proposed for the control design of robot manipulators under model uncertainties, external disturbances, and a lack of joint velocity information.
Hoang Vu Dao, Manh Hung Nguyen, Kyoung Kwan Ahn   +2 more
doaj   +1 more source

A continuous time model for observer-based frequency tracking

Results in Control and Optimization, 2023
Frequency tracking has been the focus of several research works for decades. One common method is to utilize a state observer to dynamically estimate the frequency of the measured signal.
Mohammad Mahdi Share Pasand, Ali Akbar Ahmadi   +1 more
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

Output Feedback Tracking Sliding Mode Control for Systems with State- and Input-Dependent Disturbances

Actuators, 2021
In this paper, output feedback tracking sliding mode control was considered for uncertain multivariable linear systems. The uncertainties included external disturbance, the system state, and control input.
Yi-Liang Yeh
doaj   +1 more source

Robust Control Design for Accurate Trajectory Tracking of Multi-Degree-of-Freedom Robot Manipulator in Virtual Simulator

IEEE Access, 2022
Robot manipulators have complex dynamics and are affected by significant uncertainties and external disturbances (perturbations). Consequently, determining the exact mathematical model of a robot manipulator is a tedious task.
Saad Jamshed Abbasi, Hamza Khan, Jin Won Lee, M. Salman, Min Cheol Lee   +4 more
doaj   +1 more source