用于增强近零磁场噪声抑制的改进型时延分离 ADRC 方法

IF 4.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2025-02-17 DOI:10.1016/j.sna.2025.116306

Haoting Wu, Haifeng Zhang, Peiling Cui, Xiuqi Zhao, Shiqiang Zheng

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Improved time-delay separation ADRC method for enhancing noise suppression of near-zero magnetic field

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Improved time-delay separation ADRC method for enhancing noise suppression of near-zero magnetic field

Magnetocardiogram imaging diagnosis is the frontier development direction of non-invasive cardiovascular disease diagnosis. The magnetic field compensation (MFC) system has the problems of magnetic field coupling and time delay. A new control method based on improved time-delay separation ADRC (ITDS-ADRC) was proposed. Firstly, the time-delay variable was used to identify the MFC system, and a second-order coupling magnetic field model with time delay was established. Then a noise suppression enhanced differentiator as a Smith predictor was used for the design of ADRC. The extended state observer (ESO) was used to estimate and compensate for the internal and external disturbances of the system. The experimental results show that the magnetic field noise suppression effect of ITDS-ADRC is 27.5% higher than ADRC.

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...