核磁共振谱自动基线校正新方法  

An Automatic Baseline Correction Method for NMR Spectra

作　　者：钟彩娇[1] 陈志伟[1] 陈忠[1] 

机构地区：[1]厦门大学电子科学系、福建省等离子体与磁共振研究重点实验室,福建厦门361005

出　　处：《波谱学杂志》2014年第4期523-534,共12页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金资助项目(81101037)

摘　　要：该文提出一种新的核磁共振谱自动基线校正方法,该方法基于迭代移动平均值算法,改进了峰区域的基线识别,然后使用迭代方法进行基线建模.为了改进峰区域的基线建模结果,该方法结合了两种基线校正方法的优点,在基线识别过程选择了一系列位于峰区域的"基线定位点",然后和除了峰区域以外的基线点一起参与基线建模.该基线校正方法适用于NMR谱,即使在基线严重非线性失真的情况下也能得到理想的基线校正结果.An automatic baseline correction method for nuclear magnetic resonance （NMR） spectra is presented. It is based on improved baseline recognition in peak regions using an iterative moving averaging algorithm, followed by an iterative baseline modeling procedure. The method combines advantages of two baseline correction methods in order to improve baseline modeling in peak regions. A set of baseline anchor points in peak regions are picked during baseline recognition, and utilized for baseline modeling with baseline points. The proposed baseline correction method was shown to perform well on NMR spectra even when they have a large nonlinear baseline distortion.

关 键 词：核磁共振(NMR) 自动基线校正 迭代方法 数据处理 

分 类 号：O482.53[理学—固体物理]