| 分数导数结合傅里叶最小二乘拟合处理含噪音的重迭信号 |
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| 引用本文： | 卢小泉,刘宏德,张敏,王晓强,薛中华,康敬万.分数导数结合傅里叶最小二乘拟合处理含噪音的重迭信号[J].分析化学,2003,31(2):143-147. |
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| 作者姓名： | 卢小泉 刘宏德 张敏 王晓强 薛中华 康敬万 |
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| 作者单位： | 西北师范大学化学化工学院,兰州,730070 |
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| 基金项目： | 国家自然科学基金 (No .2 0 2 75 0 31)，湖南大学化学生物传感与计量学国家重点实验室基金，西北师范大学创新工程基金 (KJCX 0 1)资助项目 |
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| 摘 要： | 提出了一种含噪音重迭信号的综合处理方法 :先用傅里叶最小二乘法拟合噪音数据 ,然后对拟合后的信号求 2 .5次导数 ,在对模拟数据研究的基础上 ,讨论了求导后峰位漂移及其影响因素 ,给出了一个用于矫正峰位值的经验公式。用该方法对模拟和实际的紫外含噪音重迭信号进行处理 ,结果良好
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| 关 键 词： | 导数 傅里叶最小二乘拟合 重迭信号 |
| 修稿时间： | 2002年4月15日 |
Fractional Derivative Combined Fourier Least Square Fitting to Process Noised Overlapped Signal |
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| Lu Xiaoquan ,Liu Hongde,Zhang Min,Wang Xiaoqiang,Xue Zhonghua,Kang Jingwan.Fractional Derivative Combined Fourier Least Square Fitting to Process Noised Overlapped Signal[J].Chinese Journal of Analytical Chemistry,2003,31(2):143-147. |
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| Authors: | Lu Xiaoquan Liu Hongde Zhang Min Wang Xiaoqiang Xue Zhonghua Kang Jingwan |
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| Institution: | Lu Xiaoquan *,Liu Hongde,Zhang Min,Wang Xiaoqiang,Xue Zhonghua,Kang Jingwan |
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| Abstract: | A derivative method combined with Fourier least square fitting was designed to process noised overlapped peaks. After being fitted with least square method, data were treated with fractional derivative to amplify peaks. A formula was used to rectify the shift of peak position in derivative spectrum. Simulated and true ultraviolet spectral signal hvea been processed. The results were satisfied. |
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| Keywords: | Derivative Fourier least-square-fitting noised overlapped peak |
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