Assessment Method of Torpedo Overall Schemes Based on Principal Component Analysis

Three torpedo overall schemes are analyzed and assessed with principal component analysis(PCA), and the results coincide with practical situation, verifying the effectiveness of PCA in this study. However, according to the as-sessment results, the PCA method is analyzed, and three insufficiencies of traditional PCA in practical application are found, i.e.: 1) parameters standardization does not consider the difference between efficiency-based indexes and cost-based indexes; 2) assessment result is lack of physical meaning; 3) part of information is lost during the principal component extraction process.