Title :
The applicability of Hawkins statistic for PCA modeling
Author :
Qiu, Tian ; Zhu, Xiang
Author_Institution :
Sch. of Control & Comput. Eng., North China Electr. Power Univ., Beijing, China
Abstract :
Hawkins´ TH2 statistic has not been analyzed in PCA thoroughly for ill-conditioning problem. This paper provides an analysis of Hawkins´ TH2 statisic by analyzing characters of industy process and the calculation accuracy of modern computor, which shows that Hawkins´ TH2 statistic is applicable for industy process monitoring. And a data simulation experiment indicates that Hawkins´ TH2 statistic has similar efficiency as SPE statistic.
Keywords :
principal component analysis; process monitoring; Hawkins´ TH2 statistical analysis; PCA modeling; data simulation experiment; ill-conditioning problem; industy process monitoring; modern computor; square prediction error statistic; Covariance matrix; Eigenvalues and eigenfunctions; Fault detection; Mathematical model; Noise; Principal component analysis; Sensors;
Conference_Titel :
Intelligent Control and Information Processing (ICICIP), 2011 2nd International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-0813-8
DOI :
10.1109/ICICIP.2011.6008306
