| Widlar微电流源的特性测量与建模研究 |
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| 引用本文： | 薛晓铂,谭永宏,曾喆昭.Widlar微电流源的特性测量与建模研究[J].测控技术,2018,37(6):51-54. |
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| 作者姓名： | 薛晓铂 谭永宏 曾喆昭 |
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| 作者单位： | 湖南科技学院实验实训中心,湖南永州,425199
长沙理工大学电气与信息工程学院,湖南长沙,410076 |
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| 基金项目： | 湖南省自然科学基金项目(2015JJ6043)，湖南科技学院重点学科建设项目 |
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| 摘 要： | 针对现有Widlar微电流源中电阻参数计算误差较大的问题,研究了一种基于Laguerre多项式拟合曲线的误差校正方法,并使用递推最小二乘法(RLS)对拟合曲线的模型参数进行递推计算,使得拟合曲线高精度拟合Widlar微电流源的非线性特性.研究结果表明,该方法具有很高的电阻参数计算精度,最大相对误差小于0.0963％,在Widlar微电流源设计领域具有重要的应用价值.
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| 关 键 词： | 微电流源 Laguerre基函数 曲线拟合 RLS算法 micro current source Laguerre basis functions curve fitting recursive least squares algorithm |
Research on Characteristics Measurement and Modeling of Widlar Micro Current Source |
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| XUE Xiao-bo,TAN Yong-hong,ZENG Zhe-zhao.Research on Characteristics Measurement and Modeling of Widlar Micro Current Source[J].Measurement & Control Technology,2018,37(6):51-54. |
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| Authors: | XUE Xiao-bo TAN Yong-hong ZENG Zhe-zhao |
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| Abstract: | In order to solve of the problem of larger errors in the calculation of resistance parameters for existing Widlar micro current source,an error correction method based on Laguerre polynomial curve-fitting is studied,and the recursive calculation of the model parameters for the fitted curve was implemented by using the recursive least squares (RLS) so as to make the fitted curve fit the nonlinear characteristics of the Widlar micro current source with high precision.The research results show that the proposed method has high calculation precision of resistance parameter,and the maximum relative error is less than 0.0963 ％,therefore the presented approach has important application value in the field of Widlar micro-current source design. |
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| Keywords: | micro current source Laguerre basis functions curve fitting recursive least squares algorithm |
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