连续小波变换下红外光谱法定量分析水溶液成分的算法研究  

On Algorithm of Infrared Spectrometry Quantitative Analysis about Aqueous Solution Using Continuous Wavelet Transformand

作　　者：谢倩[1] 王永国[1] 姜安[2] 张士江[1] 

机构地区：[1]安徽大学数学科学学院,安徽合肥230039 [2]中国科学院自动化研究所,北京100190

出　　处：《河北北方学院学报（自然科学版）》2011年第2期35-39,共5页Journal of Hebei North University:Natural Science Edition

摘　　要：由于纯水独特的吸光度光谱特性,常见的定量分析方法对水溶液的吸光度光谱进行定量分析时,效果并不理想,误差较大,稳定性不高.在迭代最小二乘算法的基础上,结合连续小波变换理论,提出了一种改进的处理水溶液定量分析问题的算法.该算法利用了连续小波变换多尺度提高光谱的分辨率的特性,有效地提高了利用物质的吸光度光谱,对水溶液定量分析问题时的精度和稳定性问题.Due to the unique spectral characteristics of the pure water,common quantitative analysis methods to aqueous solution are not satisfying.And these methods result in obvious error and low stability.This paper introduces an algorithm,based on the iterative least square method and combining the continuous wavelet transform theory.It uses the advantages of CWT which improves the spectral resolution through by multiscale analysis.And this algorithm improves precision and stabilization of the quantitative analysis of the pure water effectively.

关 键 词：迭代最小二乘方法 连续小波变换 定量分析 

分 类 号：O657.33[理学—分析化学]