中文摘要：

为解决传统着舰指挥官对于舰载机进舰过程风险描述的局限性，提出了一种基于优势保有度的着舰风险三角模糊语言变量多属性动态决策方法．分析相邻时刻决策结果的逻辑连续性，阐释动态多属性决策及其保有性概念，定义基于面积比例的三角模糊数可能度计算公式，通过计算基于优势保有度的排序向量实现舰载机着舰风险评测．算例分析表明，具有保有性的排序向量增加了各分量之间的区别，弥补了原计算方法排序分量过于相近的不足．基于优势保有度的动态决策方法可以解决传统静态决策过程中排序分量相同时不可决策的问题，决策结果与实际落点分布情况相符，证明决策方法在舰载机着舰风险评估中应用的合理性．

英文摘要：

To solve the limitation of traditional risk description to pilot control capability by landing signal officer, this paper proposed a dynamic multi-attribute decision making method with triangular fuzzy linguistic variable for aircraft landing risk based on advantage retention degree （ARD）. According to analysethe logic continuity of deci- sion result at adjoining periods, the concepts of dynamic multi-attribute decision making and retainability were de- scribed, the calculation formula of triangular fuzzy number possibility degree based on area ratio was defined, and then the aircraft landing risk evaluation was realized by the calculation of ordering vector based on ARD. The analy- sis of numerical examples show that the distinction among components of ordering vector with retainability in- creased, compensating the deficiency of too closeness of ordering vectors in former computation method. The dy- namic multi- attribute decision making based on ARD can solve the problem that the decision couldnt be made if the components are same during the traditional static decision making process. The decision results accord with dis- tributions of touchdown points, therefore, the rationality of decision ing is proved.