期刊文献+

基于主元分析和聚类的船舶机电设备性能变化趋势的提取

Trends extraction of performance of marine mechanical & electrical equipment based on PCA and clustering
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摘要 利用主元分析模型和小波变换模极大值法,提出了监测船舶机电设备性能变化的趋势提取方法。基于聚类思想,定义了奇异值分散性测度,估计了主元数;类似地,通过对复相关系数的聚类分析,确定了主元显著相关变量。算例证明了文中方法的有效性。 Using the principal component analysis (PCA) model and the wavelet modulus maxima (WMM) method, an approach on the trends extraction is presented to monitor the performance of marine mechanical and electrical equipment. The number of principal components (PCs) is estimated by using the Clustering-based method. The Principle-component-related Variables (PVs) are located similarly. The validity of the approach is confirmed by the calculation.
机构地区 海军工程大学 上海
出处 《机电设备》 2006年第1期I0008-I0011,I0004,共5页 Mechanical and Electrical Equipment
关键词 PCA 聚类 小波 趋势分析 PCA clustering wavelet trends extraction
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参考文献9

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