文章基本信息

标题：Weighted Wavelets Coefficients for Monitoring Process Mean
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作者：Achraf Cohen ; Teodor Tiplica ; Abdessamad Kobi 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：1
页码：819-823
DOI：10.1016/j.ifacol.2016.03.158
语种：English
出版社：Elsevier
摘要：AbstractIn this paper, we present a result regarding the probability distribution of wavelets coefficients. It extends the Theorem 1 that is presented in our previous work-Cohen, A. et al. Design of experiments and statistical process control using wavelets analysis. Control Engineering Practice. 2015- to include Biorthogonal wavelets. Then, a new control chart, called OWave (Orthogonal Wavelets), is proposed in order to detect mean change in the process. The statistic of the proposed control chart is based on weighted wavelets coefficients. Performance study shows that OWave control chart performs slightly better than the optimal version of EWMA control chart.
关键词：KeywordsControl chartswavelets coefficientsSPCmean changemulti-scale analysis