A Fast North-Finding Algorithm on the Moving Pedestal Based on the Technology of Extended State Observer (ESO) [PDF]
Sensors, 2022 We propose a kind of fast and high-precision alignment algorithm based on the ESO technology. Firstly, in order to solve the problems of rapid, high-accuracy, and anti-interference alignment on the moving pedestal in the north-seeker, the ESO technology in control theory is introduced to improve the traditional Kalman fine-alignment model.
Yunchao Bai +6 more
openaire +4 more sources
Robust observer-sliding mode composite control for mechanical systems under uncertain disturbances [PDF]
Scientific ReportsThis paper investigates a composite control strategy combining an extended state observer (ESO) with sliding mode control (SMC) for mechanical systems subject to unknown disturbances and unmeasured velocity states.
Qin Li, Yuexiang Hu, Xinxiang Fang
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]
SensorsActive 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 +6 more
doaj +2 more sources
Dual Observer Based Adaptive Controller for Hybrid Drones
Drones, 2023 A biplane quadrotor (hybrid vehicle) benefits from rotary-wing and fixed-wing structures. We design a dual observer-based autonomous trajectory tracking controller for the biplane quadrotor.
Nihal Dalwadi +2 more
doaj +1 more source
Sensors, 2023 The accuracy of the line-of-sight of aviation photoelectric optoelectronic stabilization platforms is limited by two factors: external disturbance and sensor noise. An extended state observer (ESO) can effectively improve their anti-interference ability.
Lu Wang +4 more
doaj +1 more source
Design of Disturbance Extended State Observer (D-ESO)-Based Constrained Full-State Model Predictive Controller for the Integrated Turbo-Shaft Engine/Rotor System [PDF]
Energies, 2019 In the modern helicopter design and development process, constrained full-state control technology for turbo-shaft engine/rotor systems has always been a research hotspot in academia and industry. However, relevant references have pointed out that the traditional design method with an overly complex structure (Min-Max structure and schedule-based ...
Nannan Gu, Xi Wang, Feiqiang Lin
openaire +1 more source
Output Feedback Tracking Control for Vessel with Collision-Avoidance and Performance Constraints
Applied Sciences, 2023 This manuscript investigates an output feedback-tracking control problem of a dynamically positioned vessel with an input constraint. The vessel is exposed to model uncertainty and external disturbances.
Benwei Zhang, Guoqing Xia
doaj +1 more source
A Fuzzy Backstepping Attitude Control Based on an Extended State Observer for a Tilt-Rotor UAV
Aerospace, 2022 In order to overcome the influence of internal and external disturbances caused by rotor tilt motion and gust disturbance on the full flight mode control of a tilt-rotor unmanned aerial vehicle (UAV), a design method using fuzzy backstepping control ...
Suiyuan Shen, Jinfa Xu, Qingyuan Xia
doaj +1 more source
IEEE Access, 2020 In this paper, an innovative technique to design a finite-time extended state observer (FT-ESO) for a class of nonlinear systems is proposed. This FT-ESO aims to estimate the full state of a nonlinear system as well as the uncertainties and/or ...
Hamid Razmjooei +2 more
doaj +1 more source
Adaptive fuzzy extended state observer for a class of nonlinear systems with output constraint
Nonlinear Engineering, 2023 In this study, an adaptive fuzzy extended state observer (AFESO) for single-input–single-output nonlinear affine systems in the presence of external disturbances and output constraints is proposed.
Delpasand Mahtab, Farrokhi Mohammad
doaj +1 more source