摘要
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.
作者
曾涛
朱平芳
曾建平
ZENG Tao, ZHU Pingfang, ZENG Jianping(School of Aerospace Engineering, Xiamen University, Xiamen 361102, Chin)
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第4期552-557,共6页
Journal of Xiamen University：Natural Science
基金
国家自然科学基金(61374037
61673325)
关键词
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
atmospheric disturbances
longitudinal touchdown point distribution
single factor
variance analysis
decision tree
linear regression
