Results 11 to 20 of about 509,812 (335)
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 +1 more
doaj +1 more source
Observation of a Flat and Extended Surface State in a Topological Semimetal
Materials, 2022 A flat band structure in momentum space is considered key for the realization of novel phenomena. A topological flat band, also known as a drumhead state, is an ideal platform to drive new exotic topological quantum phases. Using angle-resolved photoemission spectroscopy experiments, we reveal the emergence of a highly localized surface state in a ...
Mori, Ryo +6 more
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Finite-time ship formation control based on extended state observer
Zhongguo Jianchuan Yanjiu, 2023 ObjectiveIn order to solve the problems of most current ship formation control algorithms such as their long control cycle and poor timeliness, this paper proposes a finite-time control strategy based on an extended state observer (ESO).MethodsFirst, a ...
Jun NING +5 more
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Parameterization of a Novel Nonlinear Estimator for Uncertain SISO Systems with Noise Scenario
Mathematics, 2022 Dynamic observers are commonly used in feedback loops to estimate the system’s states from available control inputs and measured outputs. The presence of measurement noise degrades the performance of the observer and consequently degrades the performance
Ahmad Taher Azar +8 more
doaj +1 more source
Machines, 2023 This paper presents a novel extended state observer (ESO) approach for a class of plants with nonlinear dynamics. The proposed observer estimates both the state variables and the total disturbance, which includes both exogenous and endogenous disturbance.
Ahmad Taher Azar +7 more
doaj +1 more source
Sliding Mode Control Based on High-Order Linear Extended State Observer for Near Space Vehicle
International Journal of Aerospace Engineering, 2021 Aiming at the uncertainty and external disturbance sensitivity of the near space vehicles (NSV), a novel sliding mode controller based on the high-order linear extended state observer (LESO) is designed in this paper.
Ouxun Li +3 more
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An active fault tolerant control approach to an offshore wind turbine model [PDF]
, 2014 The paper proposes an observer based active fault tolerant control (AFTC) approach to a non-linear large rotor wind turbine benchmark model. A sensor fault hiding and actuator fault compensation strategy is adopted in the design.
Patton, Ron, Shi, Fengming
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Extended representations of observables and states for a noncontextual reinterpretation of QM [PDF]
Journal of Physics A: Mathematical and Theoretical, 2012 A crucial and problematical feature of quantum mechanics (QM) is nonobjectivity of properties. The ESR model restores objectivity reinterpreting quantum probabilities as conditional on detection and embodying the mathematical formalism of QM into a broader noncontextual (hence local) framework.
Claudio Garola, Sandro Sozzo
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Performance comparison of adaptive and ESO-based backstepping controllers for disturbance rejection in spacecraft [PDF]
علوم، فناوری و کاربردهای فضاییThis paper compares spacecraft attitude control in the presence of disturbance torque using an adaptive backstepping controller and an extended state observer-based backstepping controller.
Somayeh Jamshidi, mehdi mirzaei
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A Separation Principle on Lie Groups [PDF]
, 2010 For linear time-invariant systems, a separation principle holds: stable observer and stable state feedback can be designed for the time-invariant system, and the combined observer and feedback will be stable.
Bonnabel, Silvere +3 more
core +2 more sources