| 引用本文: | 谢海斌,谢红卫,龙志强.磁悬挂天平校准关系的非线性拟合.[J].国防科技大学学报,2001,23(6):90-94.[点击复制] |
| XIE Haibin,XIE Hongwei,LONG Zhiqiang.Nonlinear Fitness of Calibration Model of Magnetic Suspension and Balance System[J].Journal of National University of Defense Technology,2001,23(6):90-94[点击复制] |
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| 磁悬挂天平校准关系的非线性拟合 |
| 谢海斌, 谢红卫, 龙志强 |
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(国防科技大学 机电工程与自动化学院，湖南 长沙 410073)
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| 摘要: |
| 以磁悬挂天平系统的校准为研究背景，介绍了传统的校准关系的线性建模方案，针对其存在的缺陷，并结合校准实验数据的特点，提出了非线性拟合的改进方案，该方案借鉴了主成份分析法的合理成分，采用三次样条拟合方法建立校准关系，获得了令人满意的实际效果，最后，还定量比较了校准拟合的改进方案和传统的线性建模方案。 |
| 关键词: 磁悬挂天平系统 主成份分析法 非线性拟合 校准关系 |
| DOI： |
| 投稿日期：2001-06-11 |
| 基金项目:国家部委预研基金资助 |
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| Nonlinear Fitness of Calibration Model of Magnetic Suspension and Balance System |
| XIE Haibin, XIE Hongwei, LONG Zhiqiang |
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(College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The research background is the calibration of the magnetic suspension and balance system developed in China. The paper introduces the traditional linear calibration modeling methods, discusses how to overcome its limitation after examining the calibration test data carefully. An improved method of nonlinear fitness to construct the calibration model is proposed. The proposed method uses the rational components of the concept of principal component analysis, and adopts the ideas of cubic spline fitting. Finally, We compare the results of the improved method and traditional methods, and prove the effect of the proposed one. |
| Keywords: magnetic suspension and balance system principal component analysis nonlinear fitness calibration relationship |
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