光谱学与光谱分析, 2011, 31 (2): 440, 网络出版: 2011-03-24
基于Savizky-Golay多项式的三维荧光光谱的曲面平滑方法
The Surface Smoothing Methods for Three-Dimensional Fluorescence Spectrometry Based on Savitzky-Golay Polynomial Smoothing
三维荧光光谱 Savitzky-Golay多项式平滑 有机污染物浓度检测 Three-dimensional fluorescence spectrometry Savitzky-Golay polynomial smoothing Detection of dissolved organ matter
摘要
平滑处理是光谱分析中常用的预处理方法。 在二维光谱分析中应用广泛的Savizky-Golay多项式曲线平滑方法并不能直接应用于三维荧光光谱的曲面平滑。 文章针对三维荧光光谱提出了多项式平滑方法, 从而将Savitzky-Golay多项式平滑方法扩展到三维荧光光谱, 以解决曲面平滑问题。 对基于三维荧光光谱的水体有机污染物浓度检测进行了实验研究, 实验结果表明采用三维荧光光谱平滑处理方法可有效提高检测模型的精度。
Abstract
Spectral smoothing is commonly used as effective pretreatment methods in the spectral analysis. However, the conventional Savitzky-Golay polynomial smoothing methods used in two-dimensional spectral analysis can not be applied to three-dimensional spectrometry directly. In the present paper, a polynomial surface smoothing method is proposed, and the two-dimensional Savitzky-Golay polynomial smoothing methods are extended to three-dimensional fluorescence spectra. Experiment for detecting dissolved organ matter in water using three-dimensional florescence spectrometry was carried out, and experimental results show that the smoothing method for the three-dimensional fluorescence spectrum can effectively improve the modeling accuracy.
杜树新, 杜阳锋, 武晓莉. 基于Savizky-Golay多项式的三维荧光光谱的曲面平滑方法[J]. 光谱学与光谱分析, 2011, 31(2): 440. DU Shu-xin, DU Yang-feng, WU Xiao-li. The Surface Smoothing Methods for Three-Dimensional Fluorescence Spectrometry Based on Savitzky-Golay Polynomial Smoothing[J]. Spectroscopy and Spectral Analysis, 2011, 31(2): 440.