一种多类型证据的合成评估方法  

A combination assessment method based on multi-types of evidence

作　　者：王亮[1] 吕卫民[1] 金永川 

机构地区：[1]海军航空工程学院七系 [2]中国人民解放军91681部队

出　　处：《控制与决策》2014年第11期1973-1978,共6页Control and Decision

基　　金：总装预研基金项目(9140A27020210JB1404;9140A19030811JB1401)

摘　　要：为了充分利用实际工程中众多状态信息,提出一种多类型证据的合成方法,用以评估复杂系统健康状态.首先分析基于多类型证据的合成评估流程,给出不同类型证据的标准化方法,并计算信息熵赋予各证据不同的熵权;然后提出区间灰数型证据的基本可信度分配方法及其他不同类型证据在同一识别框架下的基本可信度转化方法;最后将所有证据在同一识别框架下进行合成评估.算例分析结果验证了所提出方法的可行性和有效性.To take full advantages of much health information in the practical engineering,a combination method is presented,which is used to assess health condition of complex system.The process of combination assessment based on multi-types of evidences is analyzed firstly.Standardized methods of different types of uncertainty indexes are proposed,and different weights are given to different indexes by means of calculating information entropy.Then,the basic belief transformation method of interval gray number indexes is proposed.Finally,all types of evidences are synthesized in the same recognition framework.The application analysis shows the feasibility and effectiveness of the proposed model.

关 键 词：证据理论 多类型证据 区间灰数 熵权 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]