大气扰动对舰载机纵向着舰点散布的影响分析

(厦门大学航空航天学院,福建 厦门 361102)

大气扰动; 纵向着舰点散布; 单因素; 方差分析; 决策树; 线性回归

Analysis of Carrier-based Aircraft's Longitudinal Touchdown Point Distribution Under the Influence of Atmospheric Disturbances
ZENG Tao,ZHU Pingfang,ZENG Jianping*

(School of Aerospace Engineering,Xiamen University,Xiamen 361102,China)

atmospheric disturbances; longitudinal touchdown point distribution; single factor; variance analysis; decision tree; linear regression

DOI: 10.6043/j.issn.0438-0479.201707017

备注

针对大气扰动具有的非线性和随机性特点,采用单因素方差分析法和决策树与线性回归结合法,分别对纵向着舰点散布的影响进行了定性和定量分析.研究结果表明,大气扰动各分量对纵向着舰点散布的影响有显著不同,且垂直方向的扰动分量对舰载机着舰点散布的影响更大.特别地,所提出的决策树与线性回归结合法显著提高了纵向着舰点的预测精度.

Taking into account the nonlinearity and randomness characteristics of atmospheric disturbances,we have conducted single factor analyses of variance and have used the decision tree with linear regression programs to qualitatively and quantitatively analyze effects of longitudinal touchdown points.Results show that effects of each component of atmospheric disturbances on the distribution of longitudinal landing points differ significantly from one another,and the vertical disturbance component is the most serious one.Particularly,decision tree combined with the linear regression method greatly improves the accuracy of the predicted landing point of the longitudinal.