摘要
对于分析化学中的重叠信号,是化学计量学的研究重点之一.本文应用模拟信号,应用三次样条函数进行插值以增加数据密度,然后由连续‘mexh’小波变换分析重叠信号.结果显示通过‘mexh’小波变换能分离重叠的信号,峰位值不变.对实验信号进行分析,获得理想结果,可为分析化学中重叠的色谱、光谱信号分析提供方法.
It is one of the research emphases in chemometrics for the overlapped signals in analytical chemistry. In this paper, the interpolation three times spline function was used, aimed to increase the data density in the analog signal, and then analysed overlapping signals by continuous wavelet transform ＇ mexh＇.The results showed that , the overlapped signal was separated through the ＇mexh＇ wavelet trans form, peak value unchanged, to the experimental signal, obtain ideal result, which provides a method of chromatographic analysis, spectral signal overlap in analytical chemistry.
出处
《聊城大学学报（自然科学版）》
2014年第1期50-54,共5页
Journal of Liaocheng University:Natural Science Edition
基金
聊城大学大学生创新基金(SF2012045)
关键词
连续小波变换
墨西哥帽小波
模拟信号
continuous wavelet transform, mexico hat wavelet, analog signal
