电子装备测试性融合评估方法

Fusion Evaluation Method of Electronic Equipment Testability with Small Sample

测试性是装备通用质量特性之一,其设计水平直接影响了装备保障效能的发挥,如何更加真实地评估装备的测试性水平是当前研究的热点;在研制阶段,装备实物测试性试验数据数量少、获取难、费用高,可认为是"小子样"数据,为了更加全面客观地评价装备的测试性水平,需要充分利用测试性仿真试验获取仿真数据进行融合评估;进行测试性仿真试验时,研究电子装备的仿真模型、故障模型、仿真故障注入方法,获取测试性仿真数据;在此基础上,将仿真试验数据作为验前信息并进行的处理,结合"小子样"装备实物试验数据,采用贝叶斯方法进行测试性试验数据的融合来评估装备的测试性水平,提高评估结果的客观性和可信度;通过案例分析,验证了测试性融合评估方法的有效性。

The testability is one of the general quality characteristics in equipment,and the design level of testability is an important factor which affecting the support effectiveness playing,and how to evaluate the testability of equipment more authentically is the focus of current research.In the development stage,the objective testability test data from physical experiment are few,difficult to obtain and expensive,which can be considered as"small sample"data.In order to evaluate the testability of equipment more comprehensively and objectively,it is necessary to make full use of testability simulation test to obtain simulation data for fusion evaluation.When conducting testability simulation test,the simulation model,fault model and simulation fault injection method of electronic equipment are studied to obtain testability simulation data.On this basis,the simulation test data is treated as pre-test information and combined with the physical test data of"small sample"equipment,the testability of the equipment is evaluated by integrating the testability test data with the Bayesian method,so as to improve the objectivity and credibility of the evaluation results.Through case analysis,the effectiveness of the testability fusion evaluation method is verified.