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影响因子：7.4
DOI码：10.1109/TIE.2025.3613643
所属单位：仪器科学与光电工程学院
教研室：大科学装置研究院
发表刊物：IEEE Transactions on Industrial Electronics
关键字：Magnetic field measurement; Magnetic shielding; Magnetic fields; Magnetic resonance imaging; Coils; Magnetic noise; Harmonic analysis; Magnetic resonance; Active magnetic disturbance suppression; composite controller; harmonic disturbances suppression; linear extended state observer (LESO); nonlinear gradient coil; Signal to noise ratio; State estimation
摘要：High-power devices used in hospitals generate harmonic magnetic field disturbances inside magnetic shielding cylinders (MSCs). These disturbances exhibit axial-gradient spatial distributions, which substantially degrade the imaging quality of magnetocardiography (MCG). To address this issue, a high-precision nonlinear spatial gradient disturbance suppression method is proposed for single-open MSCs. First, a nonlinear gradient coil design is developed to generate variable magnetic field gradients, precisely matching the nonlinear gradient distribution induced by external magnetic disturbances i
合写作者：Zhongxiang Jing, Fengwen Zhao, Xiangyang Ye, Suhang Li, Yunyang Lian, Gang Liu
第一作者：Haifeng Zhang
论文类型：期刊论文
学科门类：工学
一级学科：仪器科学与技术
文献类型：期刊
卷号：73
期号：2
页面范围：3316-3327
ISSN号：0278-0046, 1557-9948
是否译文：否
发表时间：2026-02-01