基于多源信息加权融合的研制阶段测试性评估方法

Testability Evaluation Method Based on Multi-source Information Weighted Fusion in Development Phase

摘要:

装备在研制阶段通常缺乏有效的试验和使用数据,其测试性水平往往难以评估,针对上述问题,提出基于多源信息加权融合的研制阶段测试性评估方法;方法综合考虑了装备研制阶段可利用的仿真信息、专家经验信息以及类似装备的历史信息,构建了以3类信息为基础的装备测试性指标值密度分布函数,同时依据可信度原则确定了3类信息的融合权重;在此基础上,利用证据折扣组合方法评估装备当前的测试性水平;最后,通过案例应用证明了该方法的有效性。

Abstract:

In the phase of equipment development, there is often short of effective test and application data, and the level of its testability is difficult to evaluate. Aiming at the above-mentioned problem, a testability evaluation method based on multi-source information weighted fusion in development phase is proposed. In the method information such as simulation information, expert information and historical information of similar equipment which can be used of testability evaluation in the development phase is synthetically considered. Test indexes density functions are constructed by the three kinds of information, while fusion weight of the three kinds of information is confirmed by the credibility. On this basis, the current test level of the equipment is evaluated by evidence discount combination method. At last, an example is given to show the validity of the proposed method.