| 基于非均匀B样条曲线的红外数据的精确拟合及校正 |
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| 引用本文： | 王先培,张爱菊,李少雄. 基于非均匀B样条曲线的红外数据的精确拟合及校正[J]. 光谱学与光谱分析, 2006, 26(10): 1850-1853 |
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| 作者姓名： | 王先培 张爱菊 李少雄 |
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| 作者单位： | 1. 武汉大学系统集成与故障诊断实验室，湖北 武汉 430072
2. 中南财经政法大学信息学院，湖北 武汉 430064 |
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| 基金项目： | 国家科技攻关计划 , 湖北省科技攻关项目 |
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| 摘 要： | 红外谱图数据的精确拟合是建立标准谱图的重要组成部分，是光谱仪器正确进行定性和定量分析的基础。文章采用非均匀B样条对红外谱图数据进行曲线拟合，通过采用基于最大范数距离的B样条拟合算法，不仅解决了大容量红外谱图的精确拟合问题，同时对谱图峰值精确定位也提供了方便。文章介绍了非均匀B样条曲线，以及二阶(三阶)非均匀B样条曲线拟合的实现，重点描述了红外谱图数据拟合精度的控制方法。
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| 关 键 词： | 红外光谱分析仪 B样条 红外谱图 |
| 文章编号： | 1000-0593（2006）10-1850-04 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005-11-28 |
Accurate Curve Fitting and Revising of Infrared Data Based on NUBSC |
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| WANG Xian-pei,ZHANG Ai-ju,LI Shao-xiong. Accurate Curve Fitting and Revising of Infrared Data Based on NUBSC[J]. Spectroscopy and Spectral Analysis, 2006, 26(10): 1850-1853 |
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| Authors: | WANG Xian-pei ZHANG Ai-ju LI Shao-xiong |
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| Affiliation: | 1. Laboratory of System Integration and Faults Diagnostics Science of Wuhan University, Wuhan 430072, China2. Info-School of Zhongnan University of Economics and Law, Wuhan 430064, China |
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| Abstract: | Accurate curve fitting of infrared spectrum data is important for building standard spectrum,and is the basic requirement for qualitative and quantitative spectral analysis.In the present paper,B-Spline was used to accurately fit the infrared spectrum data.Based on the max norm distances of B-Spline curve fitting arithmetic,this method not only resolved the curve fitting problem of infrared data,but also provided a convenient way to orient peak values of spectrum.The authors introduced the(B-Spline,) realized curve fitting of quadratic non-uniform B-Spline curves(for short: NUBSC),and described the precision control of curve fitting of infrared spectrum data. |
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| Keywords: | Infrared speetrometers B-Spline Infrared spectrum |
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