基于改进型模拟退火模型的X荧光光谱寻峰方法的研究  

Research on the Peak Search Method Based on Improved Simulated Annealing Model for X-Ray Fluorescence Spectrum

作　　者：曾国强[1] 葛良全[1] 罗耀耀[1] 张庆贤[1] 程峰[1] 王广西[1] 

机构地区：[1]成都理工大学,四川成都610059

出　　处：《光谱学与光谱分析》2013年第9期2583-2585,共3页Spectroscopy and Spectral Analysis

基　　金：国家资源环境技术领域(863计划)课题项目(2012AA061803);国家自然科学基金项目(40904054)资助

摘　　要：在能量色散X荧光分析技术分析中,对谱信息的处理一直是研究的重点,谱光滑、寻峰、峰面积处理都是重中之重,本工作基于模拟退火算法原理,建立一种新的寻峰模型算法,该算法利用模拟退火寻找全局最优点的收敛特性,以Metropolis准则作为峰谷判断的基础,引入新的判定标准和峰谷数组,同时从谱道址两端同时收敛,以收敛到同一最优解为终止条件。同时,利用该算法与简单比较法、三阶导数法进行对比实验,结果证明该算法在X荧光光谱寻峰中有较强能力,在实际生产中具有一定价值。In energy dispersive X-ray fluorescence analysis technical analysis,the spectrum information processing has been being the focus of researches,spectrum smooth,peak-search,and peak area processing are the top priority,tA peak search method is based on simulated annealing algorithm principle,and to establish a new search peak model algorithm,this algorithm uses the advantages of the global convergence properties of simulated annealing and the Metropolis criterion is used as a peak valley judgment basis.A new decision criteria on peak valley array is used in this method,too.At the same time,convergence is taken from both ends of the spectrum channel address,it ends up when convergence reaches to the same optimal solution.This paper compared the algorithm with the simple comparison method,third derivative method,and the contrast experiment results,showing that this algorithm has a strong ability on X-ray fluorescence spectrum peak-search and a certain value in the actual production.

关 键 词：能量色散X荧光分析 寻峰模型 改进型模拟退火 

分 类 号：O657.3[理学—分析化学]