基于改进权值和TOPSIS质量评估方法

Method of Quality Assessment Based on Improved Weight and TOPSIS

摘要:

针对武器电子系统质量评估过程中客观性不强、实用度较差的问题,引入评估指标的区分度与重要度概念,提出基于DSmT改进权值的TOPSIS质量评估方法；首先,从主客观角度构建指标重要度和区分度作为广义信度赋值；然后采用DSmT(Dezert-Smarandache Theory)理论融合不同冲突证据源的广义信度赋值,消除证据源间的冲突,得到改进权值；接着构造基于改进权值的TOPSIS(Technique for Order Preference by Similarity to an Ideal Solution)法隶属贴近度；最后,以某型感应装定器为例进行实验验证,结果表明,该方法确定的指标权重具有更高可信度,对系统的质量评估更加准确,符合装备实际情况,具有较好的工程应用价值。

Abstract:

Considering the problem of lower applicability and objectivity of Quality assessment for weapon electronic systems,the paper proposed a new method of quality assessment based on TOPSIS and index weight improved by DSmT.Firstly, discrimination and importance degree of index are as the basic belief assignment from the subjective and objective point of view.Then the basic belief assignment was combined to get the optimal weight by using DSmT. Membership of TOPSIS is constructed based on the optimal weight.Finally,the new method was used to evaluate a induction setter.The results indicate that the method can get good efficiency on the system quality assessment and it is in line with the actual situation of equipment.The improved weight is more credible.The method has great value in engineering application.